Standard Lemma guide

tretinoin

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • Received-Pronunciation: /tɹəˈtɪn.əʊ.ɪn/
  • General-American: /tɹəˈtɪn.oʊ.ɪn/
  • CMU ARPABET: T R EH1 T IH0 N OY2 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

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.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

Topics: chemistry, medicine, natural-sciences, organic-chemistry, pharmacology, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *terh2-der. Proto-Indo-European *térh2t Proto-Indo-European *-ónts Proto-Indo-European *tr̥h2ónts Proto-Indo-European *tr̥h2n̥ts Proto-Italic *trāns Proto-Italic *trāns- Latin trans-bor. English tr(ans)- English retino(ic acid) Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ineclip. English -in English tretinoin From tr(ans)- + retino(ic acid) + -in.