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Noun: pyrethrin  pI'reethrin
  1. A substance resembling, and isomeric with, ordinary camphor, and extracted from the essential oil of feverfew

Derived forms: pyrethrins

Encyclopedia: Pyrethrin

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pyrargyrite
Pyrausta
Pyrausta nubilalis
pyre
pyrectic
pyrene
Pyrenean
Pyrenees
Pyrenees daisy
Pyrenomycetes
pyrethrin
pyrethrum
Pyrethrum
pyretic
Pyrex
pyrexia
pyrheliometer
pyridine
Pyridium
pyridoxal
pyridoxamine