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11-cis-retinal

[-sĭs′rĕt′n-ăl′, -ôl′]

n.

The isomer of retinaldehyde that enzymatically combines with opsin to form rhodopsin.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.