Found 2 items, similar to Retinal.
English → English (WordNet) Definition: retinal retinal adj : in or relating to the retina of the eye; “retinal cells” retinal n : either of two yellow to red retinal pigments formed from Rhodopsin by the action of light [syn: retinene]
English → English (gcide) Definition: Retinal Retinal \Ret"i*nal\, a. (Anat.) Of or pertaining to the retina. [1913 Webster] Retinal purple (Physiol. Chem.), the visual purple. [1913 Webster] 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]