| slovo | definícia |
quinone
(encz) | quinone,chinon Zdeněk Brož |
Quinone
(gcide) | Quinone \Qui"none\, n. [Quinine + ketone.] (Chem.)
A crystalline substance, C6H4O2 (called also
benzoketone), first obtained by the oxidation of quinic
acid and regarded as a double ketone; also, by extension, any
one of the series of which quinone proper is the type.
[Written also chinone, kinone.]
[1913 Webster] |
quinone
(wn) | quinone
n 1: any of a class of aromatic yellow compounds including
several that are biologically important as coenzymes or
acceptors or vitamins; used in making dyes [syn: quinone,
benzoquinone] |
| | podobné slovo | definícia |
anthraquinone
(encz) | anthraquinone,antrachinon [eko.] RNDr. Pavel Piskač |
naphthoquinone
(encz) | naphthoquinone, n: |
phylloquinone
(encz) | phylloquinone, n: |
quinone
(encz) | quinone,chinon Zdeněk Brož |
ubiquinone
(encz) | ubiquinone, n: |
xyloquinone
(encz) | xyloquinone,xylochinon n: [chem.] logbun |
Anthraquinone
(gcide) | Anthraquinone \An`thra*qui"none\, n. [Anthracene + quinone.]
(Chem.)
A hydrocarbon, C6H4.C2O2.C6H4, subliming in shining yellow
needles. It is obtained by oxidation of anthracene.
[1913 Webster] |
Hydroquinone
(gcide) | Hydroquinone \Hy`dro*qui"none\, n. [Hydro-, 2 + quinone.]
(Chem.)
A white crystalline substance, C6H4(OH)2, obtained by the
reduction of quinone. It is a diacid phenol, resembling, and
metameric with, pyrocatechin and resorcin. Called also
dihydroxy benzene.
[1913 Webster] |
menaquinones
(gcide) | vitamin K2 \vitamin K2\, vitamins K2 \vitamins K2\n.
one of the two K vitamins, actually a mixture of homologous
fat-soluble substituted naphthoquinones (called
menaquinones), (C11H7O2[C5H8]nH), where n may be 1 to 13
but is mostly 7 to 9. The term is also used for synthetic
compounds resembling vitamin K2 and having the same
physiological action. The individual components of vitamin K2
are also referred to by the number of isoprenyl units in the
side chain (the number n in the formula), as for menadione,
having no units at that position of the naphthaquinone ring,
and also called vitamin K2(0) (and also called vitamin K3).
--[MI11]
Syn: menaquinones, antihemorrhagic vitamin..
[WordNet 1.5 +PJC] |
Naphthoquinone
(gcide) | Naphthoquinone \Naph`tho*qui"none\, n. [Naphthalene + quinone.]
(Chem.)
A yellow crystalline substance, C10H6O2, analogous to
quinone, obtained by oxidizing naphthalene with chromic acid.
[1913 Webster] |
xyloquinone
(gcide) | Phlorone \Phlo"rone\, n. [Phlorol + quinone.] (Chem.)
A yellow crystalline substance having a peculiar unpleasant
odor, resembling the quinones, and obtained from beechwood
tar and coal tar, as also by the oxidation of xylidine; --
called also xyloquinone.
[1913 Webster]Xyloquinone \Xy`lo*qui"none\, n. [Xylene + quinone.] (Chem.)
Any one of a group of quinone compounds obtained respectively
by the oxidation of certain xylidine compounds. In general
they are yellow crystalline substances.
[1913 Webster] |
Xyloquinone
(gcide) | Phlorone \Phlo"rone\, n. [Phlorol + quinone.] (Chem.)
A yellow crystalline substance having a peculiar unpleasant
odor, resembling the quinones, and obtained from beechwood
tar and coal tar, as also by the oxidation of xylidine; --
called also xyloquinone.
[1913 Webster]Xyloquinone \Xy`lo*qui"none\, n. [Xylene + quinone.] (Chem.)
Any one of a group of quinone compounds obtained respectively
by the oxidation of certain xylidine compounds. In general
they are yellow crystalline substances.
[1913 Webster] |
benzoquinone
(wn) | benzoquinone
n 1: any of a class of aromatic yellow compounds including
several that are biologically important as coenzymes or
acceptors or vitamins; used in making dyes [syn: quinone,
benzoquinone] |
naphthoquinone
(wn) | naphthoquinone
n 1: a fat-soluble vitamin that helps in the clotting of blood
[syn: vitamin K, naphthoquinone, {antihemorrhagic
factor}] |
phylloquinone
(wn) | phylloquinone
n 1: a form of vitamin K [syn: vitamin K1, phylloquinone,
phytonadione] |
quinone
(wn) | quinone
n 1: any of a class of aromatic yellow compounds including
several that are biologically important as coenzymes or
acceptors or vitamins; used in making dyes [syn: quinone,
benzoquinone] |
ubiquinone
(wn) | ubiquinone
n 1: any of several quinones found in living cells and that
function as coenzymes that transfer electrons from one
molecule to another in cell respiration [syn: ubiquinone,
coenzyme Q] |
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