res·​meth·​rin (ˌ)rez-ˈmeth-rin How to pronounce resmethrin (audio)
: a nonpersistent synthetic insecticide C22H26O3 that is a derivative of pyrethrin and is used in aerosols

Word History


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

First Known Use

1971, in the meaning defined above

Time Traveler
The first known use of resmethrin was in 1971

Dictionary Entries Near resmethrin

Cite this Entry

“Resmethrin.” Dictionary, Merriam-Webster, Accessed 23 Apr. 2024.

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