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The Collaborative International Dictionary
Rhodophane

Rhodophane \Rho"do*phane\, n. [Gr. "ro`don the rose + ??? to show.] (Physiol.) The red pigment contained in the inner segments of the cones of the retina in animals. See Chromophane.
--W. K["U]hne.

Wiktionary
rhodophane

n. (context biochemistry English) The red pigment in the inner segments of the cones of the retina in animals.