- a perennial plant (Chrysanthemum coccineum) of the composite family, widely grown for the white, pink, red, or purple flower
- an insecticide made from the dried flower heads of several Old World chrysanthemums,
esp. a species (Chrysanthemum cinerariaefolium) now grown extensively in the U.S.
ModL < L < Gr pyrethron
, feverfew < pyr
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