'vitamin A' definitions:
Definition of 'vitamin A'
From: WordNet
noun
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]
Definition of 'vitamin A'
From: 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]
Definition of 'vitamin A'
From: 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]
Definition of 'vitamin A'
From: 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]
Definition of 'vitamin A'
From: 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]
Words containing 'vitamin A'
- Vitamin,
- vitaminize,
- antipellagra vitamin,
- b vitamin,
- vitamin A acid,
- vitamin A alcohol,
- vitamin A aldehyde,
- vitamin A1,
- vitamin A2,
- vitamin B,
- vitamin B1,
- vitamin B12,
- vitamin B2,
- vitamin B3,
- vitamin B5,
- vitamin B6,
- vitamin Bc,
- vitamin C,
- vitamin D,
- vitamin E,
- vitamin G,
- vitamin H,
- vitamin K,
- vitamin K1,
- vitamin K2,
- vitamin K3,
- vitamin M,
- vitamin P,
- vitamin deficiency,
- vitamin pill,
- vitamins K2,
- vitamin B complex,
- b-complex vitamin,
- fat-soluble vitamin,
- high-vitamin diet,
- vitamin-deficiency diet,
- water-soluble vitamin