Retinal
Pronunciation : Ret"i*nal
Part of Speech : a.
Definition : Defn: Of or pertaining to the retina. Retinal purple (Physiol. Chem.), the visual purple.
(Anat.)
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder