retinenen.
/ˈrɛtᵻniːn/, U.S. /ˈrɛtn̩in/ Biochemistry. Now rare.
= retinal n.
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the world > life > biology > substance > pigment > [noun] > human or animal pigments > yellow > retinal
retinene1934
retinal1960
retinaldehyde1963
1934 G. Wald in Nature 14 July 65/1 In the retinas of dark adapted animals, no xanthophyll and only a trace of vitamin A occurs. Instead their chloroform extracts contain a third carotenoid with novel properties. I have named this substance retinene.
1950 Sci. News 15 17 Visual yellow..has now been shown to be closely related to, if not identical with, the aldehyde of vitamin A1, called retinene-1.
1985 Cambr. Encycl. Life Sci. ii. 92/1 Rhodopsin..is a conjugate of retinene, derived from Vitamin A, and a protein called opsin.
This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022).
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n.1934- paul jones
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