| slovo | definícia |
CHOH
(gcide) | Secondary \Sec"ond*a*ry\, a. [Cf. F. secondaire, L. secundaire.
See Second, a.]
1. Succeeding next in order to the first; of second place,
origin, rank, etc.; not primary; subordinate; not of the
first order or rate.
[1913 Webster]
Wheresoever there is moral right on the one hand, no
secondary right can discharge it. --L'Estrange.
[1913 Webster]
Two are the radical differences; the secondary
differences are as four. --Bacon.
[1913 Webster]
2. Acting by deputation or delegated authority; as, the work
of secondary hands.
[1913 Webster]
3. (Chem.) Possessing some quality, or having been subject to
some operation (as substitution), in the second degree;
as, a secondary salt, a secondary amine, etc. Cf.
primary.
[1913 Webster]
Note: A primary amine has the general formula R.NH2; a
secondary amine has the general formula R.NH.R',
where R and R' are alkyl or aryl groups. A primary
alcohol has the general formula R.CH2.OH; a secondary
alcohol has the general formula R.CHOH.R'. Tertiary
amines and alcohols have the general formulas
R.CR'N.R' and R.CR'OH.R', respectively.
[PJC]
4. (Min.) Subsequent in origin; -- said of minerals produced
by alteration or deposition subsequent to the formation of
the original rock mass; also of characters of minerals (as
secondary cleavage, etc.) developed by pressure or other
causes.
[1913 Webster]
5. (Zool.) Pertaining to the second joint of the wing of a
bird.
[1913 Webster]
6. (Med.)
(a) Dependent or consequent upon another disease; as,
Bright's disease is often secondary to scarlet fever.
(b) Occurring in the second stage of a disease; as, the
secondary symptoms of syphilis.
[1913 Webster]
Secondary accent. See the Note under Accent, n., 1.
Secondary age. (Geol.) The Mesozoic age, or age before the
Tertiary. See Mesozoic, and Note under Age, n., 8.
Secondary alcohol (Chem.), any one of a series of alcohols
which contain the radical CH.OH united with two
hydrocarbon radicals. On oxidation the secondary alcohols
form ketones.
Secondary amputation (Surg.), an amputation for injury,
performed after the constitutional effects of the injury
have subsided.
Secondary axis (Opt.), any line which passes through the
optical center of a lens but not through the centers of
curvature, or, in the case of a mirror, which passes
through the center of curvature but not through the center
of the mirror.
Secondary battery. (Elec.) See under Battery, n., 4.
Secondary circle (Geom. & Astron.), a great circle that
passes through the poles of another great circle and is
therefore perpendicular to its plane.
Secondary circuit, Secondary coil (Elec.), a circuit or
coil in which a current is produced by the induction of a
current in a neighboring circuit or coil called the
primary circuit or coil.
Secondary color, a color formed by mixing any two primary
colors in equal proportions.
Secondary coverts (Zool.), the longer coverts which overlie
the basal part of the secondary quills of a bird. See
Illust. under Bird.
Secondary crystal (Min.), a crystal derived from one of the
primary forms.
Secondary current (Elec.), a momentary current induced in a
closed circuit by a current of electricity passing through
the same or a contiguous circuit at the beginning and also
at the end of the passage of the primary current.
Secondary evidence, that which is admitted upon failure to
obtain the primary or best evidence.
Secondary fever (Med.), a fever coming on in a disease
after the subsidence of the fever with which the disease
began, as the fever which attends the outbreak of the
eruption in smallpox.
Secondary hemorrhage (Med.), hemorrhage occuring from a
wounded blood vessel at some considerable time after the
original bleeding has ceased.
Secondary planet. (Astron.) See the Note under Planet.
Secondary qualities, those qualities of bodies which are
not inseparable from them as such, but are dependent for
their development and intensity on the organism of the
percipient, such as color, taste, odor, etc.
Secondary quills or Secondary remiges (Zool.), the quill
feathers arising from the forearm of a bird and forming a
row continuous with the primaries; -- called also
secondaries. See Illust. of Bird.
Secondary rocks or Secondary strata (Geol.), those lying
between the Primary, or Paleozoic, and Tertiary (see
Primary rocks, under Primary); -- later restricted to
strata of the Mesozoic age, and at present but little
used.
Secondary syphilis (Med.), the second stage of syphilis,
including the period from the first development of
constitutional symptoms to the time when the bones and the
internal organs become involved.
Secondary tint, any subdued tint, as gray.
Secondary union (Surg.), the union of wounds after
suppuration; union by the second intention.
[1913 Webster]
Syn: Second; second-rate; subordinate; inferior.
[1913 Webster] |
| | podobné slovo | definícia |
C6H5CHOHCOOH
(gcide) | amygdalic \am`yg*dal"ic\ ([.a]m`[i^]g*d[.a]l"[i^]k [a^]s"[i^]d),
n. (Chem.)
An organic acid (C6H5.CH(OH).COOH) extracted from bitter
almonds; called also mandelic acid and
[alpha]-Hydroxybenzeneacetic acid.
[PJC] |
CCl3CHOH2
(gcide) | chloral hydrate \chloral hydrate\ n.
1. a chemical substance (CCl3.CH(OH)2) which is a hydrate
of trichloroacetaldehyde. It crystallizes as white
monoclinic plates, obtained by treating chloral with
water. It produces sleep when taken internally or
hypodermically, and is used in medicine as a hypnotic and
sedative; -- called also chloral
Note: It may be habit-forming, and is a controlled substance
listed in the U. S. Code of Federal Regulations. It is
sometimes used to render a person unconscious for
illegal or nefarious purposes, and in this use, a
concentrated solution is one of the agents called
knockout drops.
[PJC] |
CH3CH25CHOHCH2CHCHCH27COOH
(gcide) | ricinoleic acid \ric`in*o"le*ic ac"id\, n. (Chem.)
An organic acid (C18H34O3) obtained from the castor-oil
plant (Ricinus communis, or Palma Christi) and other
species of the family Euphorbiaceae; chemicaly it is
d-12-hydroxyoleic acid
(CH3(CH2)5.CH(OH).CH2.CH=CH.(CH2)7COOH). Formerly called
palmic acid.
[1913 Webster +PJC] |
CH3CHOHCO-
(gcide) | Lactyl \Lac"tyl\, n. [Lactic + -yl.] (Chem.)
An organic residue or radical (CH3.CHOH.CO-) derived from
lactic acid.
[1913 Webster +PJC] Lacunae |
HOCH2CHOH4CH2OH
(gcide) | mannitol \man"ni*tol\, n. [Mannite + -ol.]
1. (Chem.) A white crystalline hexose
(HO.CH2.(CHOH)4.CH2.OH) of a sweet taste obtained from a
so-called manna, the dried sap of the flowering ash
(Fraxinus ornus); -- called also mannite, and {hydroxy
hexane}. Cf. Dulcite. It is used in pharmacy as
excipient and diluent for solids and liquids. It is also
used as a food additive for anti-caking properties, or as
a sweetener, and, illegally, to "cut" (dilute) illegal
drugs such as cocaine or heroin.
Syn: D-mannitol; manna sugar; cordycepic acid; Diosmol;
Mannicol; Mannidex; Osmiktrol; Osmosal.
[1913 Webster +PJC] |
HOCOCH2CHOHCOOH
(gcide) | Malic \Ma"lic\, a. [L. malum an apple: cf. F. malique.] (Chem.)
Pertaining to, or obtained from, apples; as, malic acid.
[1913 Webster]
Malic acid, (Chem.) a hydroxy acid
(HO.CO.CH2.CH(OH).CO.OH) obtained from unripe fruit
(such as green apples, currants, tomatoes or cherries) as
a substance which is sirupy or crystallized with
difficulty, and has a strong but pleasant sour taste. It
is levorotatory or dextrorotatory according to the
temperature and concentration; the natural form is of L-
conformation. A synthetic variety is a derivative of
succinic acid, but as with most simple synthetic
compounds, is a racemic mixture of isomers and thus has no
rotatory action on polarized light.
[1913 Webster +PJC] |
RCHOHR'
(gcide) | Secondary \Sec"ond*a*ry\, a. [Cf. F. secondaire, L. secundaire.
See Second, a.]
1. Succeeding next in order to the first; of second place,
origin, rank, etc.; not primary; subordinate; not of the
first order or rate.
[1913 Webster]
Wheresoever there is moral right on the one hand, no
secondary right can discharge it. --L'Estrange.
[1913 Webster]
Two are the radical differences; the secondary
differences are as four. --Bacon.
[1913 Webster]
2. Acting by deputation or delegated authority; as, the work
of secondary hands.
[1913 Webster]
3. (Chem.) Possessing some quality, or having been subject to
some operation (as substitution), in the second degree;
as, a secondary salt, a secondary amine, etc. Cf.
primary.
[1913 Webster]
Note: A primary amine has the general formula R.NH2; a
secondary amine has the general formula R.NH.R',
where R and R' are alkyl or aryl groups. A primary
alcohol has the general formula R.CH2.OH; a secondary
alcohol has the general formula R.CHOH.R'. Tertiary
amines and alcohols have the general formulas
R.CR'N.R' and R.CR'OH.R', respectively.
[PJC]
4. (Min.) Subsequent in origin; -- said of minerals produced
by alteration or deposition subsequent to the formation of
the original rock mass; also of characters of minerals (as
secondary cleavage, etc.) developed by pressure or other
causes.
[1913 Webster]
5. (Zool.) Pertaining to the second joint of the wing of a
bird.
[1913 Webster]
6. (Med.)
(a) Dependent or consequent upon another disease; as,
Bright's disease is often secondary to scarlet fever.
(b) Occurring in the second stage of a disease; as, the
secondary symptoms of syphilis.
[1913 Webster]
Secondary accent. See the Note under Accent, n., 1.
Secondary age. (Geol.) The Mesozoic age, or age before the
Tertiary. See Mesozoic, and Note under Age, n., 8.
Secondary alcohol (Chem.), any one of a series of alcohols
which contain the radical CH.OH united with two
hydrocarbon radicals. On oxidation the secondary alcohols
form ketones.
Secondary amputation (Surg.), an amputation for injury,
performed after the constitutional effects of the injury
have subsided.
Secondary axis (Opt.), any line which passes through the
optical center of a lens but not through the centers of
curvature, or, in the case of a mirror, which passes
through the center of curvature but not through the center
of the mirror.
Secondary battery. (Elec.) See under Battery, n., 4.
Secondary circle (Geom. & Astron.), a great circle that
passes through the poles of another great circle and is
therefore perpendicular to its plane.
Secondary circuit, Secondary coil (Elec.), a circuit or
coil in which a current is produced by the induction of a
current in a neighboring circuit or coil called the
primary circuit or coil.
Secondary color, a color formed by mixing any two primary
colors in equal proportions.
Secondary coverts (Zool.), the longer coverts which overlie
the basal part of the secondary quills of a bird. See
Illust. under Bird.
Secondary crystal (Min.), a crystal derived from one of the
primary forms.
Secondary current (Elec.), a momentary current induced in a
closed circuit by a current of electricity passing through
the same or a contiguous circuit at the beginning and also
at the end of the passage of the primary current.
Secondary evidence, that which is admitted upon failure to
obtain the primary or best evidence.
Secondary fever (Med.), a fever coming on in a disease
after the subsidence of the fever with which the disease
began, as the fever which attends the outbreak of the
eruption in smallpox.
Secondary hemorrhage (Med.), hemorrhage occuring from a
wounded blood vessel at some considerable time after the
original bleeding has ceased.
Secondary planet. (Astron.) See the Note under Planet.
Secondary qualities, those qualities of bodies which are
not inseparable from them as such, but are dependent for
their development and intensity on the organism of the
percipient, such as color, taste, odor, etc.
Secondary quills or Secondary remiges (Zool.), the quill
feathers arising from the forearm of a bird and forming a
row continuous with the primaries; -- called also
secondaries. See Illust. of Bird.
Secondary rocks or Secondary strata (Geol.), those lying
between the Primary, or Paleozoic, and Tertiary (see
Primary rocks, under Primary); -- later restricted to
strata of the Mesozoic age, and at present but little
used.
Secondary syphilis (Med.), the second stage of syphilis,
including the period from the first development of
constitutional symptoms to the time when the bones and the
internal organs become involved.
Secondary tint, any subdued tint, as gray.
Secondary union (Surg.), the union of wounds after
suppuration; union by the second intention.
[1913 Webster]
Syn: Second; second-rate; subordinate; inferior.
[1913 Webster] |
Schoharie grit
(gcide) | Schoharie grit \Scho*har"ie grit`\ (Geol.)
The formation belonging to the middle of the three
subdivisions of the Corniferous period in the American
Devonian system; -- so called from Schoharie, in New York,
where it occurs. See the Chart of Geology.
[1913 Webster] |
|