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onapristone.

A synthetic antiprogestogen used to combat prostate cancer.

11 characters4 syllables approx.English language

Meaning & usage

noun/ˌoʊ.nəˈpɹɪˌstoʊn/General-American
  1. A synthetic antiprogestogen used to combat prostate cancer.

    uncountable
Where this word comes from

From ona- (of unknown origin) + (mife)pristone.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.