Search Result for "retinal purple":
Wordnet 3.0

NOUN (1)

1. a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light;
[syn: visual purple, rhodopsin, retinal purple]


The Collaborative International Dictionary of English v.0.48:

Retinal \Ret"i*nal\, a. (Anat.) Of or pertaining to the retina. [1913 Webster] Retinal purple (Physiol. Chem.), the visual purple. [1913 Webster]
WordNet (r) 3.0 (2006):

retinal purple n 1: a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light [syn: visual purple, rhodopsin, retinal purple]