permethrin
noun Etymology: per- + methyl + pyrethrin Date: 1976 a synthetic pyrethroid C21H20Cl2O3 used especially as an insecticide

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Permethrin — IUPAC name 3 Phenoxybenzyl (1RS) cis,trans 3 (2,2 dichlorovinyl) 2,2 dimethylcyclopropanecarboxylate …   Wikipedia

  • Permethrin — Strukturformel Allgemeines Name Permethrin Andere Namen …   Deutsch Wikipedia

  • permethrin — per·meth·rin (pər mĕthʹrĭn) n. A topical insecticide, C21H20CL2O3, used to treat head lice and nits, scabies, and various species of ticks.   [per + (res)methrin, a pyrethroid (resm , of unknown origin + pyrethrin).] * * * …   Universalium

  • permethrin — noun A synthetic insecticide, CHClO, used to treat head lice, nits, scabies, and in flea collars …   Wiktionary

  • permethrin — per·meth·rin pər meth rən n a synthetic pyrethroid pesticide C21H20Cl2O3 used esp. against insects, ticks, and mites * * * n. a synthetic derivative of the naturally occurring insecticide pyrethrin that is applied externally to treat head lice,… …   Medical dictionary

  • permethrin — n. synthetic pyrethrin used as an insecticide and to treat tick and lice infestation (Chemistry) …   English contemporary dictionary

  • permethrin — [pə mi:θrɪn] noun a synthetic insecticide of the pyrethroid class, used chiefly against disease carrying insects. Origin 1970s: from sense 2 of per + (res)methrin, denoting a synthetic pyrethroid …   English new terms dictionary

  • permethrin — per·meth·rin …   English syllables

  • permethrin — n. a synthetic derivative of the naturally occurring insecticide pyrethrin that is applied externally as a cream to treat pubic lice and scabies. Trade names: Lyclear …   The new mediacal dictionary

  • permethrin — (ˌ)pərˈmethrə̇n noun ( s) Etymology: per + methyl + pyrethrin : a synthetic pyrethroid C21H20Cl2O3 used especially as an insecticide …   Useful english dictionary

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