noun mirex A synthetic insecticide of the organochlorine type used chiefly against ants. 1
noun mirex an organochlorine formerly used as an insecticide. Formula: C10Cl12 0
noun mirex an insecticide consisting of a chlorinated hydrocarbon, C10Cl12, usually mixed with a bait and used esp. against fire ants 0
noun mirex (organic chemistry) The pesticide and fire retardant perchloropentacyclodecane that is a persistent, bioaccumulative, and toxic pollutant. 0
