hydrazine

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.

• IPA^(key): /ˈhaɪdɹəˌziːn/

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hydrazine (countable and uncountable, plural hydrazines)

1. (inorganic chemistry, uncountable) A corrosive, fuming liquid, NH₂-NH₂, used as a rocket fuel.
2. (organic chemistry, countable) Any member of the class of organic compounds formally derived from NH₂-NH₂.
   • 2009, Richard H. Wiley, Pyrazoles and Reduced and Condensed Pyrazoles, Volume 22, page 387:

     From ethyleneoxides or ethyleneimines carrying an acyl substituent, with hydrazine and its derivatives (Ch. 3. XV).

• diamidogen

hydrazine f (plural hydrazines)

1. hydrazine