visual yellow(redirected from all-trans-retinal)
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visual yellow[′vizh·ə·wəl ′yel·ō]
An intermediary substance formed from rhodopsin in the retina after exposure to light; it is ultimately broken down to retinene and vitamin A.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.