[ ret-n-oid ]
/ ˈrɛt nˌɔɪd /


Biochemistry. any of a group of substances related to vitamin A and functioning like vitamin A in the body.


resembling the retina.


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Origin of retinoid

First recorded in 1975–80; retin(ol) + -oid Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for retinoid

[ rĕtn-oid′ ]


Any of a class of keratolytic drugs derived from retinoic acid and used in the treatment of severe acne and psoriasis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.