English Explanatory Dictionary

pyrethrum

English dictionary entry

Meanings

noun
  1. Any of several daisy-like perennial African plants of the genus Tanacetum, especially Tanacetum cinerariifolium.
  2. Anacyclus pyrethrum (pellitory of Spain)
  3. Any of several insecticides obtained from these plants; pyrethrin.

Pronunciation

/paɪˈɹiθɹəm/

Word forms

pyrethrum pyrethrums

Etymology

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

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