单词	pyrethroid
释义	pyrethroid /pʌɪˈriːθrɔɪd / noun Chemistry A pyrethrin or related insecticidal compound: don’t confuse it with pyrethroids such as permethrin [as modifier]: pyrethroid insecticides... Many of these are again pesticides such as compounds of organophosphorous, pyrethroids or carbamate. The three types of pesticide used in preparations are organophosphates, carbamate and pyrethroids. In general, compounds known as pyrethroids and neonicotinoids were the best performers, according to the researchers.
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