cyclodiene

[sahy-kluh-dahy-een, -dahy-een]

noun Chemistry.

any of several organic chemicals having a chlorinated methylene group bonded to two carbon atoms of a 6-membered carbon ring, used commercially in insecticides.

Origin of cyclodiene

First recorded in 1940–45; cyclo- + diene

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018