pyrethroid


py·re·throid

noun \-ˈrē-ˌthrid, -ˈre-\

Definition of PYRETHROID

:  any of various synthetic compounds that are related to the pyrethrins and resemble them in insecticidal properties
pyrethroid adjective

Origin of PYRETHROID

pyrethrin + -oid
First Known Use: 1949

py·re·throid

noun \pī-ˈrē-ˌthrid, -ˈreth-ˌrid\   (Medical Dictionary)

Medical Definition of PYRETHROID

: any of various synthetic compounds that are related to the pyrethrins and resemble them in insecticidal properties
pyrethroid adjective

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