Definition of permethrin in English:

permethrin

Syllabification: per·meth·rin
Pronunciation: /pərˈmēTHrin
 
/

noun

A synthetic insecticide of the pyrethroid class, used chiefly against disease-carrying insects.
More example sentences
  • Pyrethrins and permethrin have a similar mode of activity.
  • Common treatments for head lice include permethrin and lindane.
  • Spray your clothing with permethrin insecticide spray.

Origin

1970s: from per- (sense 2) + (res)methrin, denoting a synthetic pyrethroid.

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Word of the day grammarian
Pronunciation: grəˈme(ə)rēən
noun
a person who studies and writes about grammar