WordReference Random House Unabridged Dictionary of American English © 2026
male′ic hy′drazide
(hī′drə zīd′),USA pronunciation [Chem.]
- Botany, Chemistrya crystalline compound, C4N2H4O2, used as a plant growth inhibitor and weed-killer.
- hydr-2 + az- + -ide (maleic, see maleic acid) 1945–50