allethrin
noun
al·le·thrin ˈa-lə-thrən 
: a light yellow viscous oily synthetic pyrethroid insecticide C19H26O3 used especially in household aerosols
Word History
Etymology
allyl + pyrethrin
First Known Use
1950, in the meaning defined above
Medical Definition
allethrin
noun
al·le·thrin ˈal-ə-thrən
: a light yellow viscous oily synthetic insecticide C19H26O3 used especially in household aerosols