tretinoin

[ truh-tin-oh-in ]
/ trəˈtɪn oʊ ɪn /

noun

a drug chemically related to vitamin A, used as a topical ointment to treat skin disorders, especially acne.

QUIZZES

CAN YOU ACE THIS QUIZ ABOUT “COMPLIMENT” VS. “COMPLEMENT”?

Take this quiz to see if you really know the difference between “compliment” and “complement"!
Question 1 of 11
“Compliment” and “complement” had a shared meaning a long time ago, but today they are no longer interchangeable.

Origin of tretinoin

1960–65; t(ri-) + retino- (< Greek rhētī́nē resin) + -in1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for tretinoin

tretinoin
[ trĕtn-oin′ ]

n.

An isomer of retinoic acid, used in the treatment of acne.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.