- Biochemistry. any of a group of substances related to vitamin A and functioning like vitamin A in the body.
- resembling the retina.
Origin of retinoid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- Any of a class of keratolytic drugs derived from retinoic acid and used in the treatment of severe acne and psoriasis.