A class of keratolytic drugs derived from retinoic acid and used for treatment of severe acne and psoriasis. ... (05 Mar 2000) ... 
Derivatives of vitamin A used to treat a variety of skin conditions.
Type: Term Pronunciation: ret′i-noydz Definitions: 1. A class of keratolytic drugs derived from retinoic acid and used for treatment of severe acne and psoriasis.
This is the catchall phrase used to describe all vitamin A derivatives used in skin care.
Synthetic derivatives of vitamin A.