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retinene

retinal (ˈrɛtɪnəl)

/ (ˈrɛtɪˌniːn) /
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noun

the aldehyde form of the polyene retinol (vitamin A) that associates with the protein opsin to form the visual purple pigment rhodopsin

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The rainy weather could not ________ my elated spirits on my graduation day.
C20: from retina + -ene
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for retinene

retinene
[ rĕtn-ēn′ ]

n.

Either of two yellow to red retinal pigments, formed by oxidation of vitamin A alcohols.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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