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.

Origin of tretinoin

1960–65; t(ri-) + retino- (< Greek rhētī́nē resin) + -in1

Medical definitions for tretinoin

tretinoin
[ trĕtn-oin′ ]

n.

An isomer of retinoic acid, used in the treatment of acne.