A synthetic pyrethroid compound widely used as an insecticide, especially in sprays.
Chemical name: (5-benzyl-3-furyl)methyl 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylate; C22H26O3..
Origin
1970s; earliest use found in The Times. From the initial letters of Rothamsted Experimental Station, Harpenden, England + meth- + -rin, after pyrethrin.