Definition of Retin-A in English:

Retin-A

Syllabification: Ret·in-A
Pronunciation: /ˈretn ˈā/

Entry from US English dictionary

noun

trademark
A brand of tretinoin, used in the topical treatment of acne and to reduce wrinkles.

Definition of Retin-A in:

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Word of the day oleaginous
Pronunciation: ˌōlēˈajənəs
adjective
rich in, covered with, or producing oil; oily