[ 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.

Nearby words

  1. retinochoroid,
  2. retinochoroiditis,
  3. retinochoroiditis juxtapapillaris,
  4. retinodialysis,
  5. retinoic acid,
  6. retinol,
  7. retinol dehydrogenase,
  8. retinopapillitis,
  9. retinopathy,
  10. retinopathy of prematurity

Origin of retinoid

First recorded in 1975–80; retin(ol) + -oid Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine 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.