# hydrazine

> English word · Noun · IPA /ˈhaɪdɹəˌziːn/ · frequency rank #70,760

## Definitions
1. A corrosive, fuming liquid, NH₂-NH₂, used as a rocket fuel.
2. Any member of the class of organic compounds formally derived from NH₂-NH₂.

## Etymology
Borrowed from German Hydrazin, coined by Emile Fischer in 1875 as a derivative from Diazin, an obsolete name for diimide, of which hydrazine is a hydrogenated analog. By surface analysis, hydr- + azo (“nitrogen”) + -ine.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/hydrazine