Definition of dimethoate in English:



  • A crystalline synthetic organophosphorus compound used in solution as an insecticide.

    ‘Consider alternating synthetic pyrethroids such as permethrin or fenvalerate to organophosphates such as stirofos, dimethoate, or fenthion to carbamates such as methomyl.’
    • ‘Other insecticides have a narrower range of activity, such as dimethoate and Metasystox-R, which are toxic primarily to sucking pests such as aphids.’
    • ‘In the past, the grass mites in most areas of the state have been controlled reasonably well with dimethoate, which is the least expensive product.’
    • ‘The major OP insecticides used include acephate, azinphos methyl, chlorpyrifos, dimethoate, disulfoton, fenamiphos, and phosmet.’
    • ‘While methyl parathion is more acutely toxic than the other two OPs, over time a child's chronic exposure to dimethoate and acephate can be just as dangerous.’



/dīˈmeTHōˌāt/ /daɪˈmɛθoʊˌeɪt/


1960s from di-‘two’ + methyl+ thio-+ -ate.