tretinoin

== English == === Etymology === From tr(ans)- +‎ retino(ic acid) +‎ -in. === Pronunciation === (Received Pronunciation) IPA(key): /tɹəˈtɪn.əʊ.ɪn/ (General American) IPA(key): /tɹəˈtɪn.oʊ.ɪn/ === Noun === tretinoin (usually uncountable, plural tretinoins) (organic chemistry, pharmacology) The all-trans isomer of retinoic acid that is applied to the skin to treat severe acne and reduce facial wrinkles, roughness, and pigmented spots. ==== Synonyms ==== all-trans retinoic acid, ATRA, tret (clipping) ==== Derived terms ==== alitretinoin isotretinoin tretinoin tocoferil ==== Related terms ==== retinoic acid vitamin A acid === References === “tretinoin”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022. “tretinoin”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present. === Anagrams === tontinier