feverfew Meaning, Definition & Usage

  1. noun bushy aromatic European perennial herb having clusters of buttonlike white-rayed flower heads; valued traditionally for medicinal uses; sometimes placed in genus Chrysanthemum
    Tanacetum parthenium; Chrysanthemum parthenium.

WordNet

Fe"ver*few noun
Etymology
AS. feferfuge, fr. L. febrifugia. See fever, Fugitive, and cf. Febrifuge.
Definitions
  1. (Bot.) A perennial plant (Pyrethrum, ∨ Chrysanthemum, Parthenium) allied to camomile, having finely divided leaves and white blossoms; -- so named from its supposed febrifugal qualities.

Webster 1913