diazinonPronunciation: /dʌɪˈazɪnɒn/Definition of diazinon noun [mass noun] an organophosphorus insecticide derived from pyrimidine. Origin: mid 20th century: from diazine (see di-1, azine) + -on (suffix of unknown origin)diazinon in other Oxford dictionaries Definition of diazinon in the US English dictionary
