<chemical> A carotenoid constituent of visual pigments. It is the oxidised form of retinol which functions as the active component of the visual cycle. ... It is bound to the protein opsin forming the complex rhodopsin. When stimulated by visible light, the retinal component of the rhodopsin complex undergoes isomerization at the 11-position ...
Found on
http://www.encyclo.co.uk/local/20973
Type: Term Pronunciation: ret′i-nal′dĕ-hīd Definitions: 1. Retinol oxidized to a terminal aldehyde; retinal; a carotene released (as all-trans-retinal) in the bleaching of rhodopsin by light and the dissociation of opsin in the vision cycle. Synonyms: retinene-1, retinene, vitamin A aldehyde
Found on
http://www.medilexicon.com/medicaldictionary.php?t=77917
No exact match found.
