| slovo | definícia |
sperm
(encz) | sperm,chám n: Zdeněk Brož |
sperm
(encz) | sperm,semeno Zdeněk Brož |
sperm
(encz) | sperm,sperma n: Milan Svoboda |
sperm
(encz) | sperm,spermie n: Zdeněk Brož |
sperm
(gcide) | Gamete \Gam"ete\ (g[a^]m"[=e]t; g[.a]*m[=e]t"; the latter
usually in compounds), n. [Gr. gameth` wife, or game`ths
husband, fr. gamei^n to marry.] (Biol.)
A sexual cell or germ cell having a single set of unpaired
chromosomes; a conjugating cell which unites with another of
like or unlike character to form a new individual. In Bot.,
gamete designates esp. the similar sex cells of the lower
thallophytes which unite by conjugation, forming a zygospore.
The gametes of higher plants are of two sorts, sperm (male)
and egg (female); their union is called fertilization, and
the resulting zygote an oospore. In Zool., gamete is most
commonly used of the sexual cells of certain Protozoa, though
also extended to the germ cells of higher forms.
[Webster 1913 Suppl.] |
Sperm
(gcide) | Sperm \Sperm\, n.[F. sperme, L. sperma, Gr. ???, ???, from ????
to sow. Cf. Spore.] (Physiol.)
The male fecundating fluid; semen. See Semen.
[1913 Webster]
Sperm cell (Physiol.), one of the cells from which the
spermatozoids are developed.
Sperm morula. (Biol.) Same as Spermosphere.
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Sperm
(gcide) | Sperm \Sperm\, n.[Contr. fr. spermaceti.]
Spermaceti.
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Sperm oil, a fatty oil found as a liquid, with spermaceti,
in the head cavities of the sperm whale.
Sperm whale. (Zool.) See in the Vocabulary.
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sperm
(wn) | sperm
n 1: the male reproductive cell; the male gamete; "a sperm is
mostly a nucleus surrounded by little other cellular
material" [syn: sperm, sperm cell, spermatozoon,
spermatozoan] |
| | podobné slovo | definícia |
class angiospermae
(encz) | class Angiospermae, n: |
class gymnospermae
(encz) | class Gymnospermae, n: |
class pteridospermopsida
(encz) | class Pteridospermopsida, n: |
division gymnospermophyta
(encz) | division Gymnospermophyta, n: |
division spermatophyta
(encz) | division Spermatophyta, n: |
dwarf sperm whale
(encz) | dwarf sperm whale, n: |
endosperm
(encz) | endosperm,endosperm n: Zdeněk Brož |
episperm
(encz) | episperm, n: |
group centrospermae
(encz) | group Centrospermae, n: |
group pteridospermae
(encz) | group Pteridospermae, n: |
group pteridospermaphyta
(encz) | group Pteridospermaphyta, n: |
gymnosperm
(encz) | gymnosperm, n: |
gymnosperm family
(encz) | gymnosperm family, n: |
gymnosperm genus
(encz) | gymnosperm genus, n: |
gymnospermous
(encz) | gymnospermous,nahosemenný adj: Zdeněk Brož |
gymnospermous tree
(encz) | gymnospermous tree, n: |
gymnospermous yellowwood
(encz) | gymnospermous yellowwood, n: |
internal spermatic artery
(encz) | internal spermatic artery, n: |
motility (of sperm)
(encz) | motility (of sperm),hemživost (spermií) web |
oligospermia
(encz) | oligospermia, n: |
perisperm
(encz) | perisperm, n: |
progymnosperm
(encz) | progymnosperm, n: |
pteridosperm
(encz) | pteridosperm, n: |
pygmy sperm whale
(encz) | pygmy sperm whale,kogie tuponosá [zoo.] kytovec z čeledi vorvaňovitých
(lat. Kogia breviceps) Petr Prášek |
sperm
(encz) | sperm,chám n: Zdeněk Brožsperm,semeno Zdeněk Brožsperm,sperma n: Milan Svobodasperm,spermie n: Zdeněk Brož |
sperm bank
(encz) | sperm bank, n: |
sperm cell
(encz) | sperm cell,spermatická buňka n: Nijel |
sperm count
(encz) | sperm count, n: |
sperm oil
(encz) | sperm oil, n: |
sperm whale
(encz) | sperm whale,vorvaň n: [zoo.] Physeter macrocephalus, Physeter
catodon Vít Hrachový |
spermaceti
(encz) | spermaceti, n: |
spermatic
(encz) | spermatic,spermatický adj: Zdeněk Brož |
spermatic cord
(encz) | spermatic cord, n: |
spermatid
(encz) | spermatid, n: |
spermatocele
(encz) | spermatocele, n: |
spermatocide
(encz) | spermatocide, n: |
spermatocyte
(encz) | spermatocyte,spermie n: Zdeněk Brož |
spermatogenesis
(encz) | spermatogenesis,spermatogeneze Zdeněk Brož |
spermatophore
(encz) | spermatophore,spermatický vak Zdeněk Brož |
spermatophyte
(encz) | spermatophyte,spermatofyt [eko.] RNDr. Pavel Piskač |
spermatozoa
(encz) | spermatozoa,spermie n: pl. Jaroslav Šedivý |
spermatozoan
(encz) | spermatozoan, n: |
spermatozoid
(encz) | spermatozoid, n: |
spermatozoon
(encz) | spermatozoon,spermatická buňka n: Nijel |
spermicidal
(encz) | spermicidal,spermicidický adj: Zdeněk Brožspermicidal,spermicidní adj: Nijel |
spermicide
(encz) | spermicide,spermicid n: Zdeněk Brož |
spermophile
(encz) | spermophile, n: |
spermous
(encz) | spermous, adj: |
endosperm
(czen) | endosperm,endospermn: Zdeněk Brož |
hemživost (spermií)
(czen) | hemživost (spermií),motility (of sperm) web |
sperma
(czen) | sperma,cumn: Zdeněk Brožsperma,Jismn: [vulg.] synonyma: cum, sperm, semen Jana Pejšovásperma,jizz websperma,semenn: Zdeněk Brožsperma,spermn: Milan Svoboda |
spermatická buňka
(czen) | spermatická buňka,sperm celln: Nijelspermatická buňka,spermatozoonn: Nijel |
spermatický
(czen) | spermatický,spermaticadj: Zdeněk Brož |
spermatický vak
(czen) | spermatický vak,spermatophore Zdeněk Brož |
spermatofyt
(czen) | spermatofyt,spermatophyte[eko.] RNDr. Pavel Piskač |
spermatogeneze
(czen) | spermatogeneze,spermatogenesis Zdeněk Brož |
spermicid
(czen) | spermicid,spermiciden: Zdeněk Brož |
spermicidický
(czen) | spermicidický,spermicidaladj: Zdeněk Brož |
spermicidní
(czen) | spermicidní,spermicidaladj: Nijel |
spermie
(czen) | spermie,spermn: Zdeněk Brožspermie,spermatocyten: Zdeněk Brožspermie,spermatozoan: pl. Jaroslav Šedivý |
Angiomonospermous
(gcide) | Angiomonospermous \An`gi*o*mon`o*sper"mous\
([a^]n`j[i^]*[-o]*m[o^]n`[-o]*sp[~e]r"m[u^]s), a. [Angio- +
monospermous.] (Bot.)
Producing one seed only in a seed pod.
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Angiosperm
(gcide) | Angiosperm \An"gi*o*sperm\ (-[a^]n"j[i^]*[-o]*sp[~e]rm), n.
[Angio- + Gr. ?, ?, seed.] (Bot.)
A plant which has its seeds inclosed in a pericarp.
Contrasted with gymnosperm.
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Note: The term is restricted to exogenous plants, and applied
to one of the two grand divisions of these species, the
other division including gymnosperms, or those which
have naked seeds. The oak, apple, beech, etc., are
angiosperms, while the pines, spruce, hemlock, and the
allied varieties, are gymnosperms.
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Angiospermatous
(gcide) | Angiospermatous \An`gi*o*sper"ma*tous\
([a^]n`j[i^]*[-o]*sp[~e]r"m[.a]*t[u^]s), a. (Bot.)
Same as Angiospermous.
[1913 Webster] |
Angiospermous
(gcide) | Angiospermous \An`gi*o*sper"mous\, a. (Bot.)
Having seeds inclosed in a pod or other pericarp.
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Arundinaria macrosperma
(gcide) | Cane \Cane\ (k[=a]n), n. [OE. cane, canne, OF. cane, F. canne,
L. canna, fr. Gr. ka`nna, ka`nnh; prob. of Semitic origin;
cf. Heb. q[=a]neh reed. Cf. Canister, canon, 1st
Cannon.]
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1. (Bot.)
(a) A name given to several peculiar palms, species of
Calamus and D[ae]manorops, having very long,
smooth flexible stems, commonly called rattans.
(b) Any plant with long, hard, elastic stems, as reeds and
bamboos of many kinds; also, the sugar cane.
(c) Stems of other plants are sometimes called canes; as,
the canes of a raspberry.
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Like light canes, that first rise big and brave.
--B. Jonson.
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Note: In the Southern United States great cane is the
Arundinaria macrosperma, and small cane is.
Arundinaria tecta.
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2. A walking stick; a staff; -- so called because originally
made of one of the species of cane.
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Stir the fire with your master's cane. --Swift.
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3. A lance or dart made of cane. [R.]
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Judgelike thou sitt'st, to praise or to arraign
The flying skirmish of the darted cane. --Dryden.
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4. A local European measure of length. See Canna.
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Cane borer (Zool.), A beetle (Oberea bimaculata) which,
in the larval state, bores into pith and destroy the canes
or stalks of the raspberry, blackberry, etc.
Cane mill, a mill for grinding sugar canes, for the
manufacture of sugar.
Cane trash, the crushed stalks and other refuse of sugar
cane, used for fuel, etc.
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Aspermatous
(gcide) | Aspermatous \A*sper"ma*tous\, a. [Gr. 'a priv. + ?, ?, seed.]
(Bot.)
Aspermous.
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Aspermous
(gcide) | Aspermous \A*sper"mous\, a. [Gr. ?; 'a priv. + ? seed.] (Bot.)
Destitute of seeds; aspermatous.
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Aspidosperma excelsum
(gcide) | Paddlewood \Pad"dle*wood`\, n. (Bot.)
The light elastic wood of the Aspidosperma excelsum, a tree
of Guiana having a fluted trunk readily split into planks.
[1913 Webster]Wheel \Wheel\ (hw[=e]l), n. [OE. wheel, hweol, AS. hwe['o]l,
hweogul, hweowol; akin to D. wiel, Icel. hv[=e]l, Gr.
ky`klos, Skr. cakra; cf. Icel. hj[=o]l, Dan. hiul, Sw. hjul.
[root]218. Cf. Cycle, Cyclopedia.]
[1913 Webster]
1. A circular frame turning about an axis; a rotating disk,
whether solid, or a frame composed of an outer rim, spokes
or radii, and a central hub or nave, in which is inserted
the axle, -- used for supporting and conveying vehicles,
in machinery, and for various purposes; as, the wheel of a
wagon, of a locomotive, of a mill, of a watch, etc.
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The gasping charioteer beneath the wheel
Of his own car. --Dryden.
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2. Any instrument having the form of, or chiefly consisting
of, a wheel. Specifically:
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(a) A spinning wheel. See under Spinning.
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(b) An instrument of torture formerly used.
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His examination is like that which is made by
the rack and wheel. --Addison.
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Note: This mode of torture is said to have been first
employed in Germany, in the fourteenth century. The
criminal was laid on a cart wheel with his legs and
arms extended, and his limbs in that posture were
fractured with an iron bar. In France, where its use
was restricted to the most atrocious crimes, the
criminal was first laid on a frame of wood in the form
of a St. Andrew's cross, with grooves cut transversely
in it above and below the knees and elbows, and the
executioner struck eight blows with an iron bar, so as
to break the limbs in those places, sometimes finishing
by two or three blows on the chest or stomach, which
usually put an end to the life of the criminal, and
were hence called coups-de-grace -- blows of mercy. The
criminal was then unbound, and laid on a small wheel,
with his face upward, and his arms and legs doubled
under him, there to expire, if he had survived the
previous treatment. --Brande.
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(c) (Naut.) A circular frame having handles on the
periphery, and an axle which is so connected with the
tiller as to form a means of controlling the rudder
for the purpose of steering.
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(d) (Pottery) A potter's wheel. See under Potter.
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Then I went down to the potter's house, and,
behold, he wrought a work on the wheels. --Jer.
xviii. 3.
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Turn, turn, my wheel! This earthen jar
A touch can make, a touch can mar. --Longfellow.
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(e) (Pyrotechny) A firework which, while burning, is
caused to revolve on an axis by the reaction of the
escaping gases.
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(f) (Poetry) The burden or refrain of a song.
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Note: "This meaning has a low degree of authority, but is
supposed from the context in the few cases where the
word is found." --Nares.
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You must sing a-down a-down,
An you call him a-down-a.
O, how the wheel becomes it! --Shak.
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3. A bicycle or a tricycle; a velocipede.
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4. A rolling or revolving body; anything of a circular form;
a disk; an orb. --Milton.
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5. A turn revolution; rotation; compass.
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According to the common vicissitude and wheel of
things, the proud and the insolent, after long
trampling upon others, come at length to be trampled
upon themselves. --South.
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[He] throws his steep flight in many an aery wheel.
--Milton.
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A wheel within a wheel, or Wheels within wheels, a
complication of circumstances, motives, etc.
Balance wheel. See in the Vocab.
Bevel wheel, Brake wheel, Cam wheel, Fifth wheel,
Overshot wheel, Spinning wheel, etc. See under Bevel,
Brake, etc.
Core wheel. (Mach.)
(a) A mortise gear.
(b) A wheel having a rim perforated to receive wooden
cogs; the skeleton of a mortise gear.
Measuring wheel, an odometer, or perambulator.
Wheel and axle (Mech.), one of the elementary machines or
mechanical powers, consisting of a wheel fixed to an axle,
and used for raising great weights, by applying the power
to the circumference of the wheel, and attaching the
weight, by a rope or chain, to that of the axle. Called
also axis in peritrochio, and perpetual lever, -- the
principle of equilibrium involved being the same as in the
lever, while its action is continuous. See {Mechanical
powers}, under Mechanical.
Wheel animal, or Wheel animalcule (Zool.), any one of
numerous species of rotifers having a ciliated disk at the
anterior end.
Wheel barometer. (Physics) See under Barometer.
Wheel boat, a boat with wheels, to be used either on water
or upon inclined planes or railways.
Wheel bug (Zool.), a large North American hemipterous
insect (Prionidus cristatus) which sucks the blood of
other insects. So named from the curious shape of the
prothorax.
Wheel carriage, a carriage moving on wheels.
Wheel chains, or Wheel ropes (Naut.), the chains or ropes
connecting the wheel and rudder.
Wheel cutter, a machine for shaping the cogs of gear
wheels; a gear cutter.
Wheel horse, one of the horses nearest to the wheels, as
opposed to a leader, or forward horse; -- called also
wheeler.
Wheel lathe, a lathe for turning railway-car wheels.
Wheel lock.
(a) A letter lock. See under Letter.
(b) A kind of gunlock in which sparks were struck from a
flint, or piece of iron pyrites, by a revolving wheel.
(c) A kind of brake a carriage.
Wheel ore (Min.), a variety of bournonite so named from the
shape of its twin crystals. See Bournonite.
Wheel pit (Steam Engine), a pit in the ground, in which the
lower part of the fly wheel runs.
Wheel plow, or Wheel plough, a plow having one or two
wheels attached, to render it more steady, and to regulate
the depth of the furrow.
Wheel press, a press by which railway-car wheels are forced
on, or off, their axles.
Wheel race, the place in which a water wheel is set.
Wheel rope (Naut.), a tiller rope. See under Tiller.
Wheel stitch (Needlework), a stitch resembling a spider's
web, worked into the material, and not over an open space.
--Caulfeild & S. (Dict. of Needlework).
Wheel tree (Bot.), a tree (Aspidosperma excelsum) of
Guiana, which has a trunk so curiously fluted that a
transverse section resembles the hub and spokes of a
coarsely made wheel. See Paddlewood.
Wheel urchin (Zool.), any sea urchin of the genus Rotula
having a round, flat shell.
Wheel window (Arch.), a circular window having radiating
mullions arranged like the spokes of a wheel. Cf. {Rose
window}, under Rose.
[1913 Webster] |
Aspidosperma Quebracho
(gcide) | Quebracho \Que*bra"cho\, n. [Sp.] (Bot.)
A Chilian apocynaceous tree (Aspidosperma Quebracho); also,
its bark, which is used as a febrifuge, and for dyspn[oe]a of
the lung, or bronchial diseases; -- called also {white
quebracho}, to distinguish it from the red quebracho, a
Mexican anacardiaceous tree (Loxopterygium Lorentzii) whose
bark is said to have similar properties. --J. Smith (Dict.
Econ. Plants).
[1913 Webster] |
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