Hypertext Webster Gateway: "retinal"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Retinal \Ret"i*nal\, a. (Anat.)
Of or pertaining to the retina.
{Retinal purple} (Physiol. Chem.), the visual purple.
From WordNet (r) 1.7 (wn)
retinal
adj : in or relating to the retina of the eye; "retinal cells"
n : either of two yellow to red retinal pigments formed from
Rhodopsin by the action of light [syn: {retinene}]
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