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ENGLISH · A WORD WITH POSSIBILITIES

pyrethrum.

Any of several daisy-like perennial African plants of the genus Tanacetum, especially Tanacetum cinerariifolium.

9 characters3 syllables approx.English language

Meaning & usage

noun/paɪˈɹiθɹəm/US
  1. Any of several daisy-like perennial African plants of the genus Tanacetum, especially Tanacetum cinerariifolium.

    countable · uncountable
  2. Anacyclus pyrethrum (pellitory of Spain)

    countable · uncountable
  3. Any of several insecticides obtained from these plants; pyrethrin.

    countable · uncountable
Where this word comes from

From Old English pyretre, from (and later reformed after) Latin pyrethrum (in Pliny), from Hellenistic Ancient Greek πύρεθρον (púrethron).

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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.