Definition of tretinoin in English:

tretinoin

Line breaks: tre|tin¦oin
Pronunciation: /trəˈtɪnəʊɪn
 
/

noun

[mass noun] Medicine
A preparation of retinoic acid, applied to the skin to treat acne and other disorders.
More example sentences
  • Topical retinoids such as tretinoin or adapalene are effective in many patients with comedonal acne.
  • These data suggest that topical tretinoin is a useful agent in the treatment of steroid-induced acne.
  • Like tretinoin, adapalene may cause skin irritation and initial exacerbation of acne lesions.

Origin

1970s: from t- of unknown origin + retinoic acid + -in1.

Definition of tretinoin in:

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