isotretinoin

[ ahy-soh-tri-tin-oh-in, -oin ]

Phonetic (Standard)IPA

noun

, Pharmacology.

a yellowish-orange to orange crystalline powder, C 20 H 28 O 2 , used in the treatment of cystic acne.

isotretinoin

/ ˌaɪsəʊtrəˈtɪnəʊɪn /

noun

a drug related to vitamin A, used to treat severe acne that has failed to respond to other treatment

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Word History and Origins

Origin of isotretinoin¹

iso- + tretinoin a name for retinoic or Vitamin A acid, equivalent to t- (of uncertain derivation) + retino(ic acid) ( retin(ol) + -o- + -ic ) + -in ²

isotopy isotron

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