ANTIOPHTHALMIC FACTOR

Pronunciation (US): (GB):

Meaning:

Any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes

Synonyms:

A; antiophthalmic factor; axerophthol; vitamin A

Classified under:

Nouns denoting substances

Hypernyms ("antiophthalmic factor" is a kind of...):

fat-soluble vitamin (any vitamin that is soluble in fats)

Hyponyms (each of the following is a kind of "antiophthalmic factor"):

retinol; vitamin A1 (an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene)

dehydroretinol; vitamin A2 (a viscous alcohol that is less active in mammals than is vitamin A1)