hydrazinium

noun

hy·​dra·​zin·​i·​um

ˌhīdrəˈzinēəm

plural -s

: either of two cations derived from hydrazine

especially : the univalent cation NH₂NH₃⁺

hydrazinium chloride NH₂NH₃Cl or hydrazine hydrochloride NH₂NH₂.HCl

Word History

Etymology

International Scientific Vocabulary hydrazine + -ium

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now