pyrethrum
Pronunciation: pī-rē′thrŭm
Definition: The root of Anacyclus pyrethrum (family Compositae), a shrub native to Morocco; has been used as a sialogogue; its flowers are a source of pyrethrins.
[G. pyrethron, feverfew, fr. pyr, fire, from the hot-tasting root]
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Examples: glitazone, GI cocktail, etc.

