The DICT Development Group
6 definitions found
for vitamin A
From The Collaborative International Dictionary of English v.0.48 :
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]
From The Collaborative International Dictionary of English v.0.48 :
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]
From The Collaborative International Dictionary of English v.0.48 :
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]
From The Collaborative International Dictionary of English v.0.48 :
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]
From The Collaborative International Dictionary of English v.0.48 :
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]
From WordNet (r) 3.0 (2006) :
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]
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