WordReference Random House Unabridged Dictionary of American English © 2026
di•u•ron
(dī′ə ron′),USA pronunciation n.
- Botany, Pest Controla white crystalline substance, C9H10Cl2N2O, used as a weed-killer.
- di(chlorophenyl) + (dimethyl)ur(ea) + -on1 1955–60