Find the word definition

The Collaborative International Dictionary
vitamin A2

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
vitamin A2

n. a viscous alcohol that is less active in mammals than is vitamin A1 [syn: dehydroretinol]