permethrin
Meanings
noun
- A synthetic insecticide, C₂₁H₂₀Cl₂O₃, used to treat head lice, nits, and scabies; as an active ingredient in flea collars; and to eradicate woodworm infestations.
Word forms
Etymology
From Latin perme(ō) (“to pervade”) + -thrin.
Derived words
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