pyrethrum
/paɪˈɹiθɹəm/ noun
Forms pyrethrums
- noun Any of several daisy-like perennial African plants of the genus Tanacetum, especially Tanacetum cinerariifolium.
- noun Anacyclus pyrethrum (pellitory of Spain)
- noun (organic chemistry) Any of several insecticides obtained from these plants; pyrethrin.
Synonyms
Dalmatian pyrethrum Dalmatia pyrethrum Tanacetum cinerariifolium Chrysanthemum cinerariifolium painted daisy Tanacetum coccineum Chrysanthemum coccineum genus Pyrethrum
Etymology
From Old English pyretre, from (and later reformed after) Latin pyrethrum (in Pliny), from Hellenistic Ancient Greek πύρεθρον (púrethron).
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “pyrethrum”, CC BY-SA 4.0. Details