Prevents night blindness or inflammation or dryness of the eyes

• Any of several fat-soluble vitamins essential for normal vision

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
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. ...

Wiktionary Word definitions in Wiktionary
n. vitamin A

WordNet Word definitions in WordNet
n. 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 , A ]