| slovo | definícia |
Penta-
(gcide) | Penta- \Pen"ta-\, pref. [Gr. penta-, a later combining form of
pe`nte five. See Five.]
1. A combining form denoting five; as, pentacapsular;
pentagon.
[1913 Webster]
2. (Chem.) Denoting the degree of five, either as regards
quality, property, or composition; as, pentasulphide,
containing five sulfur atoms; pentoxide, containing five
oxygen atoms, etc. Also used adjectively.
[1913 Webster] |
| | podobné slovo | definícia |
repentance
(mass) | repentance
- ľútosť, pokánie |
1-pentanol
(gcide) | Amyl alcohol \Am"yl al"co*hol\ (Org. Chem.)
Any of eight isomeric liquid alcohols (C5H11.OH),
transparent, colorless liquids. It is the hydroxide of amyl.
Also called amylic alcohol. The amyl alcohol obtained from
fusel oil is mostly isoamyl alcohol (3-methyl-1-butanol or
1-hydroxy-3-methylbutane), with some sec-amyl alcohol
(2-methyl-1-butanol or 2-pentanol), and has a
characteristic peculiar odor. Other than n-amyl alcohol
(also called 1-pentanol) the other isomeric pentanols are
not usually refered to as amyl alcohol. The amyl alcohol
mixture in fusel oil forms a colorless liquid with a peculiar
cough-exciting odor and burning taste. It is used as a source
of amyl compounds, such as amyl acetate, amyl nitrite, etc.
[Webster 1913 Suppl. +PJC] |
2-pentanol
(gcide) | Amyl alcohol \Am"yl al"co*hol\ (Org. Chem.)
Any of eight isomeric liquid alcohols (C5H11.OH),
transparent, colorless liquids. It is the hydroxide of amyl.
Also called amylic alcohol. The amyl alcohol obtained from
fusel oil is mostly isoamyl alcohol (3-methyl-1-butanol or
1-hydroxy-3-methylbutane), with some sec-amyl alcohol
(2-methyl-1-butanol or 2-pentanol), and has a
characteristic peculiar odor. Other than n-amyl alcohol
(also called 1-pentanol) the other isomeric pentanols are
not usually refered to as amyl alcohol. The amyl alcohol
mixture in fusel oil forms a colorless liquid with a peculiar
cough-exciting odor and burning taste. It is used as a source
of amyl compounds, such as amyl acetate, amyl nitrite, etc.
[Webster 1913 Suppl. +PJC] |
Aristolochia Serpentaria
(gcide) | Serpentaria \Ser`pen*ta"ri*a\, a.[L. (sc. herba), fr. serpens
serpent.] (Med.)
The fibrous aromatic root of the Virginia snakeroot
(Aristolochia Serpentaria).
[1913 Webster]Snakeroot \Snake"root`\, n. (Bot.)
Any one of several plants of different genera and species,
most of which are (or were formerly) reputed to be
efficacious as remedies for the bites of serpents; also, the
roots of any of these.
[1913 Webster]
Note: The Virginia snakeroot is Aristolochia Serpentaria;
black snakeroot is Sanicula, esp. {Sanicula
Marilandica}, also Cimicifuga racemosa; Seneca
snakeroot is Polygala Senega; button snakeroot is
Liatris, also Eryngium; white snakeroot is
Eupatorium ageratoides. The name is also applied to
some others besides these.
[1913 Webster] |
Arpentator
(gcide) | Arpentator \Ar`pen*ta"tor\, n. [See Arpent.]
The Anglicized form of the French arpenteur, a land surveyor.
[R.]
[1913 Webster] |
Ceiba pentandra
(gcide) | Kapok \Ka*pok"\, n. [Prob. fr. the native name.] (Bot.)
A silky wool derived from the seeds of Ceiba pentandra
(syn. Eriodendron anfractuosum), a bombaceous tree of the
East and West Indies.
[Webster 1913 Suppl.] |
Gypogeranus serpentarius
(gcide) | Secretary \Sec"re*ta*ry\, n.; pl. Secretaries. [F.
secr['e]taire (cf. Pr. secretari, Sp. & Pg. secretario, It.
secretario, segretario) LL. secretarius, originally, a
confidant, one intrusted with secrets, from L. secretum a
secret. See Secret, a. & n.]
1. One who keeps, or is intrusted with, secrets. [R.]
[1913 Webster]
2. A person employed to write orders, letters, dispatches,
public or private papers, records, and the like; an
official scribe, amanuensis, or writer; one who attends to
correspondence, and transacts other business, for an
association, a public body, or an individual.
[1913 Webster]
That which is most of all profitable is acquaintance
with the secretaries, and employed men of
ambassadors. --Bacon.
[1913 Webster]
3. An officer of state whose business is to superintend and
manage the affairs of a particular department of
government, and who is usually a member of the cabinet or
advisory council of the chief executive; as, the secretary
of state, who conducts the correspondence and attends to
the relations of a government with foreign courts; the
secretary of the treasury, who manages the department of
finance; the secretary of war, etc.
[1913 Webster]
4. A piece of furniture, with conveniences for writing and
for the arrangement of papers; an escritoire.
[1913 Webster]
5. (Zool.) The secretary bird.
[1913 Webster]
Secretary bird. [So called in allusion to the tufts of
feathers at the back of its head, which were fancifully
thought to resemble pens stuck behind the ear.] (Zool.) A
large long-legged raptorial bird ({Gypogeranus
serpentarius}), native of South Africa, but now
naturalized in the West Indies and some other tropical
countries. It has a powerful hooked beak, a crest of long
feathers, and a long tail. It feeds upon reptiles of
various kinds, and is much prized on account of its habit
of killing and devouring snakes of all kinds. Called also
serpent eater.
[1913 Webster]
Syn: See the Note under Clerk, n., 4.
[1913 Webster] |
Irrepentance
(gcide) | Irrepentance \Ir`re*pent"ance\, n.
Lack of repentance; impenitence. --Bp. Montagu. Irrepleviable |
Leptodactylus pentadactylus
(gcide) | Crapaud \Cra*paud"\, n. [Written also crapawd, crapald,
crepaud, etc.] [F. crapaud.]
1. A toad. [Obs.]
[Webster 1913 Suppl.]
2. (Pronounced kr[.a]`p[=o]") As a proper name, {Johnny
Crapaud}, or Crapaud, a nickname for a Frenchman.
[Webster 1913 Suppl.]
3. large toothed frog of South and Central America
(Leptodactylus pentadactylus) resembling the bullfrog.
Syn: South American bullfrog, Leptodactylus pentadactylus.
[WordNet 1.5] |
Nabalus serpentarius
(gcide) | gall-of-the-earth \gall-of-the-earth\ n.
A common perennial herb (Nabalus serpentarius) widely
distributed in southern and eastern U. S., having drooping
clusters of pinkish flowers and thick basal leaves suggesting
a lion's foot in shape; sometimes placed in the genus
Prenanthes.
Syn: lion's foot, gall of the earth, Nabalus serpentarius,
Prenanthes serpentaria.
[WordNet 1.5] |
Penta-
(gcide) | Penta- \Pen"ta-\, pref. [Gr. penta-, a later combining form of
pe`nte five. See Five.]
1. A combining form denoting five; as, pentacapsular;
pentagon.
[1913 Webster]
2. (Chem.) Denoting the degree of five, either as regards
quality, property, or composition; as, pentasulphide,
containing five sulfur atoms; pentoxide, containing five
oxygen atoms, etc. Also used adjectively.
[1913 Webster] |
Pentabasic
(gcide) | Pentabasic \Pen`ta*ba"sic\, a. [Penta- + basic.] (Chem.)
Capable of uniting with five molecules of a monacid base;
having five acid hydrogen atoms capable of substitution by a
basic radical; -- said of certain acids.
[1913 Webster] |
Pentacapsular
(gcide) | Pentacapsular \Pen`ta*cap"su*lar\, a. [Penta- + capsular.]
(Bot.)
Having five capsules.
[1913 Webster] |
Pentachenium
(gcide) | Pentachenium \Pen`ta*che"ni*um\, n. [NL. See Penta-, and
Achenium.] (Bot.)
A dry fruit composed of five carpels, which are covered by an
epigynous calyx and separate at maturity.
[1913 Webster] |
Pentachloride
(gcide) | Pentachloride \Pen`ta*chlo"ride\, n. [Penta- + chloride.]
(Chem.)
A chloride having five atoms of chlorine in each molecule;
as, phosphorus pentachloride.
[1913 Webster] |
Pentachord
(gcide) | Pentachord \Pen"ta*chord\, n. [L. pentachordus five-stringed,
Gr. penta`chordos; penta- five + chordh` string.]
1. An ancient instrument of music with five strings.
[1913 Webster]
2. An order or system of five sounds. --Busby.
[1913 Webster] |
Pentacid
(gcide) | Pentacid \Pen*tac"id\, a. [Penta- + acid.] (Chem.)
Capable of neutralizing, or combining with, five molecules of
a monobasic acid; having five hydrogen atoms capable of
substitution by acid residues; -- said of certain complex
bases.
[1913 Webster] |
Pentacle
(gcide) | Pentacle \Pen"ta*cle\, n. [Gr. pe`nte five.]
A five-pointed star, also called a pentagram or pentalpha.
See illustr. under pentalpha. Sometimes referring to a
similar figure, such as the figure composed of two
equilateral triangles intersecting so as to form a
six-pointed star. It was used in early ornamental art, and
also with superstitious import by the astrologers and mystics
of the Middle Ages. The six-pointed star is more comonly
called a hexagram, or called Solomon's seal; it resembles
the star of David (Magen David)
[1913 Webster + PJC] |
Pentacoccous
(gcide) | Pentacoccous \Pen`ta*coc"cous\, a. [See Penta-, Coccus.]
(Bot.)
Composed of five united carpels with one seed in each, as
certain fruits.
[1913 Webster] |
Pentaconter
(gcide) | Pentaconter \Pen"ta*con`ter\, n. (Gr. Antiq.)
See Penteconter.
[1913 Webster]Penteconter \Pen"te*con`ter\, n. [Gr. ? (sc. ?), fr. ? fifty.]
(Gr. Antiq.)
A Grecian vessel with fifty oars. [Written also
pentaconter.]
[1913 Webster] |
pentaconter
(gcide) | Pentaconter \Pen"ta*con`ter\, n. (Gr. Antiq.)
See Penteconter.
[1913 Webster]Penteconter \Pen"te*con`ter\, n. [Gr. ? (sc. ?), fr. ? fifty.]
(Gr. Antiq.)
A Grecian vessel with fifty oars. [Written also
pentaconter.]
[1913 Webster] |
Pentacra
(gcide) | Pentacron \Pen*ta"cron\, n.; pl. L. Pentacra, E. Pentacrons.
[NL., fr. Gr. pe`nte five + 'a`kron a summit.] (Geom.)
A solid having five summits or angular points.
[1913 Webster] |
Pentacrinin
(gcide) | Pentacrinin \Pen*tac"ri*nin\, n. (Physiol. Chem.)
A red and purple pigment found in certain crinoids of the
genus Pentacrinus.
[1913 Webster] |
Pentacrinite
(gcide) | Pentacrinite \Pen*tac"ri*nite\, n. [Penta- + Gr. kri`non a
lily.] (Zool.)
Any species of Pentacrinus.
[1913 Webster] |
Pentacrinoid
(gcide) | Pentacrinoid \Pen*tac"ri*noid\, n. [Pentacrinus + -oid.] (Zool.)
An immature comatula when it is still attached by a stem, and
thus resembles a Pentacrinus.
[1913 Webster] |
Pentacrinus
(gcide) | Pentacrinus \Pen*tac"ri*nus\, n. [NL. See Penta-, and
Crinum.] (Zool.)
A genus of large, stalked crinoids, of which several species
occur in deep water among the West Indies and elsewhere.
[1913 Webster] |
Pentacron
(gcide) | Pentacron \Pen*ta"cron\, n.; pl. L. Pentacra, E. Pentacrons.
[NL., fr. Gr. pe`nte five + 'a`kron a summit.] (Geom.)
A solid having five summits or angular points.
[1913 Webster] |
Pentacrons
(gcide) | Pentacron \Pen*ta"cron\, n.; pl. L. Pentacra, E. Pentacrons.
[NL., fr. Gr. pe`nte five + 'a`kron a summit.] (Geom.)
A solid having five summits or angular points.
[1913 Webster] |
Pentacrostic
(gcide) | Pentacrostic \Pen`ta*cros"tic\, n. [Penta- + acrostic.]
A set of verses so disposed that the name forming the subject
of the acrostic occurs five times -- the whole set of verses
being divided into five different parts from top to bottom.
[1913 Webster] |
Pentacta frondosa
(gcide) | Sea cucumber \Sea" cu"cum*ber\ (Zool.)
Any large holothurian, especially one of those belonging to
the genus Pentacta, or Cucumaria, as the common American
and European species. (Pentacta frondosa).
[1913 Webster] |
Pentad
(gcide) | Pentad \Pen"tad\, n. [Gr. penta`s penta`dos, a body of five, fr.
pe`nte five.] (Chem.)
Any element, atom, or radical, having a valence of five, or
which can be combined with, substituted for, or compared
with, five atoms of hydrogen or other monad; as, nitrogen is
a pentad in the ammonium compounds.
[1913 Webster]
2. Any grouping of five things.
[PJC]Pentad \Pen"tad\, a. (Chem.)
Having the valence of a pentad.
[1913 Webster] Pentadactyl |
Pentadactyl
(gcide) | Pentadactyl \Pen`ta*dac"tyl\, Pentadactyle \Pen`ta*dac"tyle\, a.
[Gr. pentada`ktylos with five fingers or toes. See Penta-,
and Dactyl.]
1. (Anat.) Having five digits to the hand or foot.
[1913 Webster]
2. Having five appendages resembling fingers or toes.
[1913 Webster] |
Pentadactyle
(gcide) | Pentadactyl \Pen`ta*dac"tyl\, Pentadactyle \Pen`ta*dac"tyle\, a.
[Gr. pentada`ktylos with five fingers or toes. See Penta-,
and Dactyl.]
1. (Anat.) Having five digits to the hand or foot.
[1913 Webster]
2. Having five appendages resembling fingers or toes.
[1913 Webster] |
Pentadactyloid
(gcide) | Pentadactyloid \Pen`ta*dac"tyl*oid\, a. [Pentadactyl + -oid.]
(Anat.)
Having the form of, or a structure modified from, a
pentadactyl limb.
[1913 Webster] |
Pentadecane
(gcide) | Pentadecane \Pen`ta*dec"ane\ (p[e^]n`t[.a]*d[e^]k"[=a]n), n.
[Penta- + Gr. de`ka ten.] (Chem.)
A hydrocarbon of the paraffin series, (C15H32) found in
petroleum, tar oil, etc., and obtained as a colorless liquid;
-- so called from the fifteen carbon atoms in the molecule.
[1913 Webster] |
Pentadecatoic
(gcide) | Pentadecatoic \Pen`ta*dec`a*to"ic\
(p[e^]n`t[.a]*d[e^]k`[.a]*t[=o]"[i^]k), a. [Penta- +
decatoic.] (Chem.)
Of, pertaining to, or derived from, pentadecane, or
designating an acid related to it.
[1913 Webster] |
pentadecylacatechol
(gcide) | Poison \Poi"son\, n. [F. poison, in Old French also, a potion,
fr. L. potio a drink, draught, potion, a poisonous draught,
fr. potare to drink. See Potable, and cf. Potion.]
1. Any agent which, when introduced into the animal organism,
is capable of producing a morbid, noxious, or deadly
effect upon it; as, morphine is a deadly poison; the
poison of pestilential diseases.
[1913 Webster]
2. That which taints or destroys moral purity or health; as,
the poison of evil example; the poison of sin.
[1913 Webster]
Poison ash. (Bot.)
(a) A tree of the genus Amyris (Amyris balsamifera)
found in the West Indies, from the trunk of which a
black liquor distills, supposed to have poisonous
qualities.
(b) The poison sumac (Rhus venenata). [U. S.]
Poison dogwood (Bot.), poison sumac.
Poison fang (Zool.), one of the superior maxillary teeth of
some species of serpents, which, besides having the cavity
for the pulp, is either perforated or grooved by a
longitudinal canal, at the lower end of which the duct of
the poison gland terminates. See Illust. under Fang.
Poison gland (Biol.), a gland, in animals or plants, which
secretes an acrid or venomous matter, that is conveyed
along an organ capable of inflicting a wound.
Poison hemlock (Bot.), a poisonous umbelliferous plant
(Conium maculatum). See Hemlock.
Poison ivy (Bot.), a poisonous climbing plant (formerly
Rhus Toxicodendron, or Rhus radicans, now classified
as Toxicodendron radicans) of North America. It is
common as a climbing vine, especially found on tree
trunks, or walls, or as a low, spreading vine or as a
shrub. As a low vine it grows well in lightly shaded
areas, recognizable by growing in clusters of three
leaves. Its leaves are trifoliate, rhombic-ovate, and
variously notched. Its form varies slightly from location
to location, leading to some speculation that it may
consist of more than one species. Many people are poisoned
by it, though some appear resistant to its effects.
Touching the leaves may leave a residue of an oil on the
skin, and if not washed off quickly, sensitive areas of
skin become reddened and develop multiple small blisters,
lasting for several days to several weeks, and causing a
persistent itch. The toxic reaction is due to an oil,
present in all parts of the plant except the pollen,
called urushiol, the active component of which is the
compound pentadecylacatechol (according to [a
href="http:]/www.jaxmed.com/articles/Diseases/poison_ivy_dermatitis.htm">Charles
H. Booras). See Poison sumac. It is related to {poison
oak}, and is also called mercury.
Poison nut. (Bot.)
(a) Nux vomica.
(b) The tree which yields this seed ({Strychnos
Nuxvomica}). It is found on the Malabar and Coromandel
coasts.
Poison oak (Bot.), a dermatitis-producing plant often
lumped together with the poison ivy ({Toxicodendron
radicans}) in common terminology, but more properly
distinguished as the more shrubby {Toxicodendron
quercifolium} (syn. Toxicodendron diversilobum), common
in California and Oregon. Opinion varies as to whether the
poison oak and poison ivy are only variants of a single
species. See poison ivy, above.
Poison sac. (Zool.) Same as Poison gland, above. See
Illust. under Fang.
Poison sumac (Bot.), a poisonous shrub formerly considered
to be of the genus Rhus (Rhus venenata), but now
classified as Toxicodendron vernix; -- also called
poison ash, poison dogwood, and poison elder. It has
pinnate leaves on graceful and slender common petioles,
and usually grows in swampy places. Both this plant and
the poison ivy (Toxicodendron radicans, formerly {Rhus
Toxicodendron}) have clusters of smooth greenish white
berries, while the red-fruited species of this genus are
harmless. The tree (Rhus vernicifera) which yields the
celebrated Japan lacquer is almost identical with the
poison sumac, and is also very poisonous. The juice of the
poison sumac also forms a lacquer similar to that of
Japan.
[1913 Webster +PJC]
Syn: Venom; virus; bane; pest; malignity.
Usage: Poison, Venom. Poison usually denotes something
received into the system by the mouth, breath, etc.
Venom is something discharged from animals and
received by means of a wound, as by the bite or sting
of serpents, scorpions, etc. Hence, venom specifically
implies some malignity of nature or purpose.
[1913 Webster] |
Pentadecylic
(gcide) | Pentadecylic \Pen`ta*decyl"ic\
(p[e^]n`t[.a]*d[-e]*s[i^]l"[i^]k), a. [Penta- + decylic.]
(Chem.)
Same as Quindecylic.
[1913 Webster]Quindecylic \Quin`de*cyl"ic\, n. [L. quindecim fifteen + -yl.]
(Chem.)
Pertaining to, or designating, an acid of the fatty acid
series, containing fifteen atoms of carbon; called also
pentadecylic acid.
[1913 Webster] |
pentadecylic
(gcide) | Pentadecylic \Pen`ta*decyl"ic\
(p[e^]n`t[.a]*d[-e]*s[i^]l"[i^]k), a. [Penta- + decylic.]
(Chem.)
Same as Quindecylic.
[1913 Webster]Quindecylic \Quin`de*cyl"ic\, n. [L. quindecim fifteen + -yl.]
(Chem.)
Pertaining to, or designating, an acid of the fatty acid
series, containing fifteen atoms of carbon; called also
pentadecylic acid.
[1913 Webster] |
Pentadelphous
(gcide) | Pentadelphous \Pen`ta*del"phous\ (p[e^]n`t[.a]*d[e^]l"f[u^]s),
a. [Penta- + Gr. 'adelfo`s brother.] (Bot.)
Having the stamens arranged in five clusters, those of each
cluster having their filaments more or less united, as the
flowers of the linden.
[1913 Webster] |
Pentadesma butyracea
(gcide) | Vegetable \Veg`e*ta*ble\, a. [F. v['e]g['e]table growing,
capable of growing, formerly also, as a noun, a vegetable,
from L. vegetabilis enlivening, from vegetare to enliven,
invigorate, quicken, vegetus enlivened, vigorous, active,
vegere to quicken, arouse, to be lively, akin to vigere to be
lively, to thrive, vigil watchful, awake, and probably to E.
wake, v. See Vigil, Wake, v.]
[1913 Webster]
1. Of or pertaining to plants; having the nature of, or
produced by, plants; as, a vegetable nature; vegetable
growths, juices, etc.
[1913 Webster]
Blooming ambrosial fruit
Of vegetable gold. --Milton.
[1913 Webster]
2. Consisting of, or comprising, plants; as, the vegetable
kingdom.
[1913 Webster]
Vegetable alkali (Chem.), an alkaloid.
Vegetable brimstone. (Bot.) See Vegetable sulphur, below.
Vegetable butter (Bot.), a name of several kinds of
concrete vegetable oil; as that produced by the Indian
butter tree, the African shea tree, and the {Pentadesma
butyracea}, a tree of the order Guttiferae, also
African. Still another kind is pressed from the seeds of
cocoa (Theobroma).
Vegetable flannel, a textile material, manufactured in
Germany from pine-needle wool, a down or fiber obtained
from the leaves of the Pinus sylvestris.
Vegetable ivory. See Ivory nut, under Ivory.
Vegetable jelly. See Pectin.
Vegetable kingdom. (Nat. Hist.) See the last Phrase, below.
Vegetable leather.
(a) (Bot.) A shrubby West Indian spurge ({Euphorbia
punicea}), with leathery foliage and crimson bracts.
(b) See Vegetable leather, under Leather.
Vegetable marrow (Bot.), an egg-shaped gourd, commonly
eight to ten inches long. It is noted for the very tender
quality of its flesh, and is a favorite culinary vegetable
in England. It has been said to be of Persian origin, but
is now thought to have been derived from a form of the
American pumpkin.
Vegetable oyster (Bot.), the oyster plant. See under
Oyster.
Vegetable parchment, papyrine.
Vegetable sheep (Bot.), a white woolly plant ({Raoulia
eximia}) of New Zealand, which grows in the form of large
fleecy cushions on the mountains.
Vegetable silk, a cottonlike, fibrous material obtained
from the coating of the seeds of a Brazilian tree
(Chorisia speciosa). It is used for various purposes, as
for stuffing cushions, and the like, but is incapable of
being spun on account of a want of cohesion among the
fibers.
Vegetable sponge. See 1st Loof.
Vegetable sulphur, the fine and highly inflammable spores
of the club moss (Lycopodium clavatum); witch meal.
Vegetable tallow, a substance resembling tallow, obtained
from various plants; as, Chinese vegetable tallow,
obtained from the seeds of the tallow tree. {Indian
vegetable tallow} is a name sometimes given to piney
tallow.
Vegetable wax, a waxy excretion on the leaves or fruits of
certain plants, as the bayberry.
[1913 Webster]
[1913 Webster]
Vegetable kingdom (Nat. Hist.), that primary division of
living things which includes all plants. The classes of
the vegetable kingdom have been grouped differently by
various botanists. The following is one of the best of the
many arrangements of the principal subdivisions.
[1913 Webster] I. Phaenogamia (called also
Phanerogamia). Plants having distinct flowers and true
seeds. [ 1. Dicotyledons (called also Exogens). --
Seeds with two or more cotyledons. Stems with the pith,
woody fiber, and bark concentrically arranged. Divided
into two subclasses: Angiosperms, having the woody fiber
interspersed with dotted or annular ducts, and the seeds
contained in a true ovary; Gymnosperms, having few or no
ducts in the woody fiber, and the seeds naked. 2.
Monocotyledons (called also Endogens). -- Seeds with
single cotyledon. Stems with slender bundles of woody
fiber not concentrically arranged, and with no true bark.]
[1913 Webster] II. Cryptogamia. Plants without true
flowers, and reproduced by minute spores of various kinds,
or by simple cell division. [ 1. Acrogens. -- Plants
usually with distinct stems and leaves, existing in two
alternate conditions, one of which is nonsexual and
sporophoric, the other sexual and oophoric. Divided into
Vascular Acrogens, or Pteridophyta, having the
sporophoric plant conspicuous and consisting partly of
vascular tissue, as in Ferns, Lycopods, and Equiseta, and
Cellular Acrogens, or Bryophyta, having the sexual
plant most conspicuous, but destitute of vascular tissue,
as in Mosses and Scale Mosses. 2. Thallogens. -- Plants
without distinct stem and leaves, consisting of a simple
or branched mass of cellular tissue, or reduced to a
single cell. Reproduction effected variously. Divided into
Algae, which contain chlorophyll or its equivalent, and
which live upon air and water, and Fungi, which contain
no chlorophyll, and live on organic matter. (Lichens are
now believed to be fungi parasitic on included algae.]
[1913 Webster]
Note: Many botanists divide the Phaenogamia primarily into
Gymnosperms and Angiosperms, and the latter into
Dicotyledons and Monocotyledons. Others consider
Pteridophyta and Bryophyta to be separate classes.
Thallogens are variously divided by different writers,
and the places for diatoms, slime molds, and stoneworts
are altogether uncertain.
[1913 Webster] For definitions, see these names in the
Vocabulary.
[1913 Webster] |
Pentafid
(gcide) | Pentafid \Pen"ta*fid\ (p[e^]n"t[.a]*f[i^]d), a. [Penta- + root
of L. findere to split.] (Bot.)
Divided or cleft into five parts.
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Pentaglot
(gcide) | Pentaglot \Pen"ta*glot\ (p[e^]n"t[.a]*gl[o^]t), n. [Penta- +
-glot, as in polyglot.]
A work in five different tongues.
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Pentagon
(gcide) | Pentagon \Pen"ta*gon\, n. [Gr. penta`gwnon; penta- (see
Penta-) + gwni`a angle: cf. L. pentagonium, F. pentagone.]
(Geom.)
A plane figure having five angles, and, consequently, five
sides; any figure having five angles.
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Regular pentagon, a pentagon in which the angles are all
equal, and the sides all equal.
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Pentagonal
(gcide) | Pentagonal \Pen*tag"o*nal\, a. [Cf. F. pentagonal, pentagone, L.
pentagonus, pentagonius, Gr. ?.]
Having five corners or angles.
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Pentagonal dodecahedron. See Dodecahedron, and
Pyritohedron.
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Pentagonal dodecahedron
(gcide) | Pentagonal \Pen*tag"o*nal\, a. [Cf. F. pentagonal, pentagone, L.
pentagonus, pentagonius, Gr. ?.]
Having five corners or angles.
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Pentagonal dodecahedron. See Dodecahedron, and
Pyritohedron.
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Pentagonally
(gcide) | Pentagonally \Pen*tag"o*nal*ly\, adv.
In the form of a pentagon; with five angles. --Sir T. Browne.
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Pentagonous
(gcide) | Pentagonous \Pen*tag"o*nous\, a.
Pentagonal.
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Pentagram
(gcide) | Pentagram \Pen"ta*gram\, n. [Gr. ?, neut. of ? having five
lines. See Penta-, and -gram.]
A pentacle or a pentalpha. "Like a wizard pentagram."
--Tennyson.
[1913 Webster] Pentagraphic |
pentagraph
(gcide) | Pantograph \Pan"to*graph\, n. [Panto- + -graph: cf. F.
pantographe.]
An instrument for copying plans, maps, and other drawings, on
the same, or on a reduced or an enlarged, scale. [Written
also pantagraph, and incorrectly pentagraph.]
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2. An electrical conducting device consisting of a
collapsible frame resembling a pantograph[1], connected to
the top of an electrically-powered vehicle such as a
trolley, and used to conduct electrical current between
the vehicle and an overhead electric wire, which supplies
the power to the vehicle. The variable height of the
pantograph ensures that it can move to follow variations
in the height of the overhead wires, and thus make
constant contact with the wires.
[PJC]
Skew pantograph, a kind of pantograph for drawing a copy
which is inclined with respect to the original figure; --
also called plagiograph.
[1913 Webster] Pantographic |
Pentagraphic
(gcide) | Pentagraphic \Pen`ta*graph"ic\, Pentagraphical
\Pen`ta*graph"ic*al\, a. [Corrupted fr. pantographic, -ical.]
Pantographic. See Pantograph.
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Pentagraphical
(gcide) | Pentagraphic \Pen`ta*graph"ic\, Pentagraphical
\Pen`ta*graph"ic*al\, a. [Corrupted fr. pantographic, -ical.]
Pantographic. See Pantograph.
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Pentagynia
(gcide) | Pentagynia \Pen`ta*gyn"i*a\, n. pl. [NL., fr. Gr. ? (see
Penta-) + ? female.] (Bot.)
A Linn[ae]an order of plants, having five styles or pistils.
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Pentagynian
(gcide) | Pentagynian \Pen`ta*gyn"i*an\, Pentagynous \Pen*tag"y*nous\, a.
(Bot.)
Of or pertaining to plants of the order Pentagyna; having
five styles.
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Pentagynous
(gcide) | Pentagynian \Pen`ta*gyn"i*an\, Pentagynous \Pen*tag"y*nous\, a.
(Bot.)
Of or pertaining to plants of the order Pentagyna; having
five styles.
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Pentahedral
(gcide) | Pentahedral \Pen`ta*he"dral\, a.
Having five sides; as, a pentahedral figure.
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Pentahedrical
(gcide) | Pentahedrical \Pen`ta*hed"ric*al\, a.
Pentahedral. [R.]
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Pentahedron
(gcide) | Pentahedron \Pen`ta*he"dron\, n. [Penta- + Gr. "e`dra seat,
base.]
A solid figure having five sides.
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Pentahedrous
(gcide) | Pentahedrous \Pen`ta*he"drous\, a.
Pentahedral. --Woodward.
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Pentail
(gcide) | Pentail \Pen"tail`\, n. (Zool.)
A peculiar insectivore (Ptilocercus Lowii) of Borneo; -- so
called from its very long, quill-shaped tail, which is scaly
at the base and plumose at the tip.
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Pentalpha
(gcide) | Pentalpha \Pen*tal"pha\, n. [NL., fr. Gr. ?: cf. F. pentalpha.
See Penta-, and Alpha.]
A five-pointed star, resembling five alphas joined at their
bases; -- used as a symbol.
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pentamer
(gcide) | oligomer \o*lig"o*mer\, n. (Chem.)
A molecule composed of a small number of linked monomer
units; a short polymer; -- compounds called oligomers have
less than one hundred monomer units and usually less than
thirty. Oligomers of increasing length are called dimer,
trimer, tetramer, pentamer, hexamer, heptamer,
octamer, nonamer, decamer, etc. In colloquial
laboratory jargon, they may also be referred to as
nine-mer, ten-mer, eleven-mer, twelve-mer, etc.,
especially for oligomers of greater than eight units.
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Pentamera
(gcide) | Pentamera \Pen*tam"e*ra\, n. pl. [NL. See Pentamerous.]
(Zool.)
An extensive division of Coleoptera, including those that
normally have five-jointed tarsi. It embraces about half of
all the known species of the Coleoptera.
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Pentameran
(gcide) | Pentameran \Pen*tam"er*an\, n. (Zool.)
One of the Pentamera.
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Pentamerous
(gcide) | Pentamerous \Pen*tam"er*ous\, a. [Penta- + Gr. ? part.]
1. (Biol.) Divided into, or consisting of, five parts; also,
arranged in sets, with five parts in each set, as a flower
with five sepals, five petals, five, or twice five,
stamens, and five pistils.
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2. (Zool.) Belonging to the Pentamera.
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Pentamerus
(gcide) | Pentamerus \Pen*tam"e*rus\, n. [NL. See Pentamerous.]
(Paleon.)
A genus of extinct Paleozoic brachiopods, often very abundant
in the Upper Silurian.
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Pentamerus limestone (Geol.), a Silurian limestone composed
largely of the shells of Pentamerus.
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Pentamerus limestone
(gcide) | Pentamerus \Pen*tam"e*rus\, n. [NL. See Pentamerous.]
(Paleon.)
A genus of extinct Paleozoic brachiopods, often very abundant
in the Upper Silurian.
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Pentamerus limestone (Geol.), a Silurian limestone composed
largely of the shells of Pentamerus.
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Pentameter
(gcide) | Pentameter \Pen*tam"e*ter\, n. [L., fr. Gr. ?; ? (see Penta-)
+ ? measure.] (Gr. & L.Pros.)
A verse of five feet.
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Note: The dactylic pentameter consists of two parts separated
by a di[ae]resis. Each part consists of two dactyls and
a long syllable. The spondee may take the place of the
dactyl in the first part, but not in the second. The
elegiac distich consists of the hexameter followed by
the pentameter. --Harkness.
[1913 Webster]Pentameter \Pen*tam"e*ter\, a.
Having five metrical feet.
[1913 Webster]Verse \Verse\ (v[~e]rs), n. [OE. vers, AS. fers, L. versus a
line in writing, and, in poetry, a verse, from vertere,
versum, to turn, to turn round; akin to E. worth to become:
cf. F. vers. See Worth to become, and cf. Advertise,
Averse, Controversy, Convert, Divers, Invert,
Obverse, Prose, Suzerain, Vortex.]
1. A line consisting of a certain number of metrical feet
(see Foot, n., 9) disposed according to metrical rules.
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Note: Verses are of various kinds, as hexameter,
pentameter, tetrameter, etc., according to the
number of feet in each. A verse of twelve syllables is
called an Alexandrine. Two or more verses form a
stanza or strophe.
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2. Metrical arrangement and language; that which is composed
in metrical form; versification; poetry.
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Such prompt eloquence
Flowed from their lips in prose or numerous verse.
--Milton.
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Virtue was taught in verse. --Prior.
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Verse embalms virtue. --Donne.
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3. A short division of any composition. Specifically:
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(a) A stanza; a stave; as, a hymn of four verses.
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Note: Although this use of verse is common, it is
objectionable, because not always distinguishable from
the stricter use in the sense of a line.
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(b) (Script.) One of the short divisions of the chapters
in the Old and New Testaments.
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Note: The author of the division of the Old Testament into
verses is not ascertained. The New Testament was
divided into verses by Robert Stephens [or Estienne], a
French printer. This arrangement appeared for the first
time in an edition printed at Geneva, in 1551.
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(c) (Mus.) A portion of an anthem to be performed by a
single voice to each part.
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4. A piece of poetry. "This verse be thine." --Pope.
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Blank verse, poetry in which the lines do not end in
rhymes.
Heroic verse. See under Heroic.
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pentameter
(gcide) | Pentameter \Pen*tam"e*ter\, n. [L., fr. Gr. ?; ? (see Penta-)
+ ? measure.] (Gr. & L.Pros.)
A verse of five feet.
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Note: The dactylic pentameter consists of two parts separated
by a di[ae]resis. Each part consists of two dactyls and
a long syllable. The spondee may take the place of the
dactyl in the first part, but not in the second. The
elegiac distich consists of the hexameter followed by
the pentameter. --Harkness.
[1913 Webster]Pentameter \Pen*tam"e*ter\, a.
Having five metrical feet.
[1913 Webster]Verse \Verse\ (v[~e]rs), n. [OE. vers, AS. fers, L. versus a
line in writing, and, in poetry, a verse, from vertere,
versum, to turn, to turn round; akin to E. worth to become:
cf. F. vers. See Worth to become, and cf. Advertise,
Averse, Controversy, Convert, Divers, Invert,
Obverse, Prose, Suzerain, Vortex.]
1. A line consisting of a certain number of metrical feet
(see Foot, n., 9) disposed according to metrical rules.
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Note: Verses are of various kinds, as hexameter,
pentameter, tetrameter, etc., according to the
number of feet in each. A verse of twelve syllables is
called an Alexandrine. Two or more verses form a
stanza or strophe.
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2. Metrical arrangement and language; that which is composed
in metrical form; versification; poetry.
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Such prompt eloquence
Flowed from their lips in prose or numerous verse.
--Milton.
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Virtue was taught in verse. --Prior.
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Verse embalms virtue. --Donne.
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3. A short division of any composition. Specifically:
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(a) A stanza; a stave; as, a hymn of four verses.
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Note: Although this use of verse is common, it is
objectionable, because not always distinguishable from
the stricter use in the sense of a line.
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(b) (Script.) One of the short divisions of the chapters
in the Old and New Testaments.
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Note: The author of the division of the Old Testament into
verses is not ascertained. The New Testament was
divided into verses by Robert Stephens [or Estienne], a
French printer. This arrangement appeared for the first
time in an edition printed at Geneva, in 1551.
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(c) (Mus.) A portion of an anthem to be performed by a
single voice to each part.
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4. A piece of poetry. "This verse be thine." --Pope.
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Blank verse, poetry in which the lines do not end in
rhymes.
Heroic verse. See under Heroic.
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Pentamethylene
(gcide) | Pentamethylene \Pen`ta*meth"yl*ene\, n. [Penta- + methylene.]
(Chem.)
A hypothetical hydrocarbon, C5H10, metameric with the
amylenes, and the nucleus of a large number of derivatives;
-- so named because regarded as composed of five methylene
residues. Cf. Trimethylene, and Tetramethylene.
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pentamethylene diamine
(gcide) | Cadaverine \Ca*dav"er*ine\, n. Also Cadaverin \Ca*dav"er*in\ .
[From Cadaver and amine.] (Chem.)
A sirupy, nontoxic ptomaine, H2N.(CH2)5.NH2 (chemically
pentamethylene diamine), formed in putrefaction of flesh,
etc.
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