Definition of mirex in US English:



  • A synthetic insecticide of the organochlorine type used chiefly against ants.

    • ‘Breast-feeding was associated with lower levels of PCBs, DDE, and mirex among female Ontario sport fish consumers.’
    • ‘Those chemicals are identified in schedule 2 of the legislation as aldrin, chlordane, dieldrin, endrin, heptachlor, hexachlorobenzene, mirex, toxaphene, polychlorinated biphenyls, and DDT.’
    • ‘Lake Ontario is of particular concern because sportfish from this Great Lake have higher levels of PCBs, polychlorinated dibenzodioxins, mirex, and other pesticides than sportfish caught from any of the other four Great Lakes.’
    • ‘As the Minister in the previous debate mentioned, the 10 chemicals are: aldrin, chlordane, DDT, dieldrin, endrin, heptachlor, hexachlorobenzene, mirex, toxaphene, and polychlorinated biphenyls.’
    • ‘In addition, lipid weight concentration of sum chlordanes, dieldrin, and mirex were significantly higher for the 1988-1991 stranded whales compared to the 1994 subsistence animals.’


1960s: of unknown origin.