| slovo | definícia |
vitamin a
(encz) | vitamin A,vitamín A n: Zdeněk Brož |
vitamin A
(gcide) | Retinol \Ret"i*nol\, n. [Gr. ??? resin + L. oleum oil.]
1. (Chem.) A hydrocarbon oil C32H16, obtained by the
distillation of resin, -- used as a solvent, as an
antiseptic, and in printer's ink.
[1913 Webster +PJC]
2. One of the compounds which function as vitamin A. Called
also vitamin A, vitamin A1 and vitamin A alcohol.
See vitamin A1.
[PJC] |
vitamin A
(gcide) | vitamin A2 \vitamin A2\ n.
dehydroretinol (C20H28O), one of the substances also called
vitamin A. It has about 40% of the bioactivity of vitamin
A1.
Syn: dehydroretinol.
[WordNet 1.5 +PJC] |
vitamin A
(gcide) | vitamin A \vitamin A\ n.
any of several related fat-soluble vitamins (such as retinol)
essential for normal vision; it also prevents night blindness
or inflammation or dryness of the eyes.
Syn: antiophthalmic factor, axerophthol.
[WordNet 1.5] |
vitamin A
(gcide) | vitamin A1 \vitamin A1\ n.
retinol (C20H30O), one of the substances also called
vitamin A. It is also called more specifically {vitamin A
alcohol}. It is a required factor for human nutrition. The
USP unit of activity is equal to 0.30 micrograms of retinol.
Syn: retinol.
[WordNet 1.5 +PJC] |
vitamin A
(gcide) | axerophthol \axerophthol\ n.
1. a vitamin essential for normal vision (C20H30O); it
prevents night blindness or inflammation or dryness of the
eyes; same as vitamin A. One U.S.P. unit of vitamin A is
equivalent to 0.30 micrograms of pure vitamin A alcohol.
Syn: vitamin A; vitamin A alcohol; antiophthalmic factor;
biosterol; retinol; A.
[WordNet 1.5 +PJC] |
vitamin a
(wn) | vitamin A
n 1: any of several fat-soluble vitamins essential for normal
vision; prevents night blindness or inflammation or dryness
of the eyes [syn: vitamin A, antiophthalmic factor,
axerophthol, A] |
| | podobné slovo | definícia |
provitamin a
(encz) | provitamin A, n: |
vitamin a
(encz) | vitamin A,vitamín A n: Zdeněk Brož |
vitamin a1
(encz) | vitamin A1, n: |
vitamin a2
(encz) | vitamin A2, n: |
vitamin A acid
(gcide) | Retinoic acid \Ret`in*o"ic ac"id\, n. (Chem.)
A retinoid compound (C20H28O2), closely related to vitamin
A. It is also called tretinoin and vitamin A acid.
[PJC] |
vitamin A alcohol
(gcide) | Retinol \Ret"i*nol\, n. [Gr. ??? resin + L. oleum oil.]
1. (Chem.) A hydrocarbon oil C32H16, obtained by the
distillation of resin, -- used as a solvent, as an
antiseptic, and in printer's ink.
[1913 Webster +PJC]
2. One of the compounds which function as vitamin A. Called
also vitamin A, vitamin A1 and vitamin A alcohol.
See vitamin A1.
[PJC]vitamin A1 \vitamin A1\ n.
retinol (C20H30O), one of the substances also called
vitamin A. It is also called more specifically {vitamin A
alcohol}. It is a required factor for human nutrition. The
USP unit of activity is equal to 0.30 micrograms of retinol.
Syn: retinol.
[WordNet 1.5 +PJC] |
vitamin A aldehyde
(gcide) | Retinal \Ret"i*nal\, n. (Chem.)
A retinoid compound (C20H28O), closely related to vitamin
A, which is a component of the visual pigments in the eye. It
is also called retinaldehyde and vitamin A aldehyde.
[PJC] |
vitamin A1
(gcide) | Retinol \Ret"i*nol\, n. [Gr. ??? resin + L. oleum oil.]
1. (Chem.) A hydrocarbon oil C32H16, obtained by the
distillation of resin, -- used as a solvent, as an
antiseptic, and in printer's ink.
[1913 Webster +PJC]
2. One of the compounds which function as vitamin A. Called
also vitamin A, vitamin A1 and vitamin A alcohol.
See vitamin A1.
[PJC]vitamin A1 \vitamin A1\ n.
retinol (C20H30O), one of the substances also called
vitamin A. It is also called more specifically {vitamin A
alcohol}. It is a required factor for human nutrition. The
USP unit of activity is equal to 0.30 micrograms of retinol.
Syn: retinol.
[WordNet 1.5 +PJC] |
vitamin A2
(gcide) | vitamin A2 \vitamin A2\ n.
dehydroretinol (C20H28O), one of the substances also called
vitamin A. It has about 40% of the bioactivity of vitamin
A1.
Syn: dehydroretinol.
[WordNet 1.5 +PJC] |
provitamin a
(wn) | provitamin A
n 1: an orange isomer of an unsaturated hydrocarbon found in
many plants; is converted into vitamin A in the liver [syn:
provitamin A, carotene, carotin] |
vitamin a
(wn) | vitamin A
n 1: any of several fat-soluble vitamins essential for normal
vision; prevents night blindness or inflammation or dryness
of the eyes [syn: vitamin A, antiophthalmic factor,
axerophthol, A] |
vitamin a1
(wn) | vitamin A1
n 1: an unsaturated alcohol that occurs in marine fish-liver
oils and is synthesized biologically from carotene [syn:
vitamin A1, retinol] |
vitamin a2
(wn) | vitamin A2
n 1: a viscous alcohol that is less active in mammals than is
vitamin A1 [syn: vitamin A2, dehydroretinol] |
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