Noun
permethrin (countable and uncountable, plural permethrins)
A synthetic insecticide, C21H20Cl2O3, used to treat head lice, nits, scabies, and in flea collars.
Crotamiton or sulfur preparations are sometimes recommended instead of permethrin for children, due to concerns over dermal absorption of permethrin. Source: Internet
Many people use DEET and permethrin in the warmer months to keep insects away. Source: Internet
I have some by ExOfficio and Columbia with permethrin in the fabric supposedly effective through fifty or so washes. Source: Internet
It is a permethrin specifically manufactured for reptiles. Source: Internet
However, in our country, Permethrin is not being used properly. Source: Internet