English noun: vitamin A | |||
1. | vitamin A (substance) 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 | ||
Broader (hypernym) | fat-soluble vitamin | ||
Narrower (hyponym) | dehydroretinol, retinol, vitamin A1, vitamin A2 | ||