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.

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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. 2021

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.