'retinaldehyde' definitions:

Definition of 'retinaldehyde'

From: GCIDE

Retinal \Ret"i*nal\, n. (Chem.) A retinoid compound (C20H28O), closely related to vitamin A, which is a component of the visual pigments in the eye. It is also called retinaldehyde and vitamin A aldehyde. [PJC]