RHODOPSIN

Etymology

Noun

rhodopsin (countable and uncountable, plural rhodopsins)

(biochemistry) A light-sensitive pigment in the rod cells of the retina; it consists of an opsin protein bound to the carotenoid retinal

Synonyms

• visual purple

Anagrams

• donorship, phoronids

Source: Wiktionary

Rho*dop"sin, n. Etym: [Gr. "ro`don rose + "w`ps eye.] (Physiol.)

Definition: The visual purple. See under Visual.

Source: Webster’s Unabridged Dictionary 1913 Edition