retinaldehyde
(rĕt′n-ăl′də-hīd′)- A yellow to orange aldehyde that is a derivative of vitamin A and acts in the retina to form the visual pigments of the rods and cones.retinal retinene1
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.