resmethrin

noun

res·​meth·​rin (ˌ)rez-ˈmeth-rin 

-ˈmēth-

: a nonpersistent synthetic insecticide C₂₂H₂₆O₃ that is a derivative of pyrethrin and is used in aerosols

Word History

Etymology

res- (probably transposed from ester) + -methrin, blend of methyl and -ethrin (as in pyrethrin)

First Known Use

1971, in the meaning defined above