diuron

noun
di·u·ron | \ ˈdī-yə-ˌrän \

Definition of diuron 

: a persistent herbicide C9H10Cl2N2O used especially to control annual weeds

First Known Use of diuron

1957, in the meaning defined above

History and Etymology for diuron

dichlor- + urea + -on (as in parathion)

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The first known use of diuron was in 1957

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