retinene

ret·i·nene

 (rĕt′n-ēn′)

n.

See retinal².

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

retinene

(ˈrɛtɪˌniːn) or

retinal

n

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

[C20: from retina + -ene]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ret•i•nal¹

(ˈrɛt n əl)

adj.

of or pertaining to the retina of the eye.

ret•i•nal²

(ˈrɛt nˌæl, -ˌɔl)

n.

an orange visual pigment, C₂₀H₂₈O, the active component of rhodopsin and iodopsin, that is liberated upon the absorption of light in the vision cycle.

[1940–45; retin (a) + -al³]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Thesaurus

Noun

1.

retinene - either of two yellow to red retinal pigments formed from rhodopsin by the action of light retinal pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) retinal purple, rhodopsin, visual purple - a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light

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