Dictionary.com

tretinoin

[ truh-tin-oh-in ]
/ trəˈtɪn oʊ ɪn /
Save This Word!

noun
a drug chemically related to vitamin A, used as a topical ointment to treat skin disorders, especially acne.
QUIZ
THINGAMABOB OR THINGUMMY: CAN YOU DISTINGUISH BETWEEN THE US AND UK TERMS IN THIS QUIZ?
Do you know the difference between everyday US and UK terminology? Test yourself with this quiz on words that differ across the Atlantic.
Question 1 of 7
In the UK, COTTON CANDY is more commonly known as…

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. 2023
FEEDBACK