noun Etymology: per- + methyl + pyrethrin Date: 1976 a synthetic pyrethroid C 21 H 20 Cl 2 O 3 used especially as an insecticide
PERMETHRIN
Meaning of PERMETHRIN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012