retinal
UK /ˈɹɛt.ɪn.əl/ · US /ˈɹɛt.ən.əl/ adjective, noun
Forms retinals
- adjective (ophthalmology, relational) Of or pertaining to the retina.
- noun (biochemistry, organic chemistry) A yellow to orange aldehyde derived from vitamin A that is formed from rhodopsin by the action of light and in combination with proteins forms the visual pigments of the retinal rods and cones.
Synonyms
Etymology
From retina + -al (“of or pertaining to”).
Webster’s 1913
- adjective Of or pertaining to the retina. Retinal purple (Physiol.
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “retinal”, CC BY-SA 4.0. Details