Home

Visit Our Sites

Unabridged Dictionary

Learner's Dictionary

Word Central for Kids

Premium Services

Unabridged Dictionary

Encyclopedia Britannica

Institutional Subscriptions

Citing the Dictionary

Also Visit:
Unabridged
Visual

ESL:
Learner's
for Kids:
Word Central

Browse the Medical Dictionary:: A; B; C; D; E; F; G; H; I; J; K; L; M; N; O; P; Q; R; S; T; U; V; W; X; Y; Z; #

pyrethrin

One entry found.

Main Entry: py·re·thrin

Pronunciation: \pī-ˈrē-thrən, -ˈreth-rən\

Function: noun

: either of two oily liquid esters C₂₁H₂₈O₃ and C₂₂H₂₈O₅ that have insecticidal properties and are the active components of pyrethrum

Learn more about "pyrethrin"

Learn more about "pyrethrin" and related topics at Britannica.com

Pronunciation Symbols