Try Our Apps


Supposedly vs. Supposably


[hahy-druh-zeen] /ˈhaɪ drəˌzin/
Also called diamine. a colorless, oily, fuming liquid, N 2 H 4 , that is a weak base in solution and forms a large number of salts resembling ammonium salts: used chiefly as a reducing agent and a jet-propulsion fuel.
a class of substances derived by replacing one or more hydrogen atoms in hydrazine by an organic group.
Origin of hydrazine
1885-90; hydr-2 + az- + -ine2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for hydrazine
Historical Examples
  • Amidoguanidine is a body of hydrazine type, for it reduces gold and silver salts and yields a benzylidine derivative.

  • On digestion of its warm aqueous solution with warm dilute sulphuric acid, hydrazine sulphate and oxalic acid are obtained.

  • They want us to send them the quality control specification for the hydrazine that was used as fuel in the first launch.

  • While they're unloading the G-boat, I wish you'd get the tanks refilled with hydrazine and nitric acid.

    Atom Drive Charles Louis Fontenay
  • "If we had a franchise, we could force Space Fuels to sell us hydrazine," said Deveet unhappily.

    Atom Drive Charles Louis Fontenay
British Dictionary definitions for hydrazine


/ˈhaɪdrəˌziːn; -zɪn/
a colourless basic liquid made from sodium hypochlorite and ammonia: a strong reducing agent, used chiefly as a rocket fuel. Formula: N2H4
Word Origin
C19: from hydro- + azo- + -ine²
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
hydrazine in Science
  (hī'drə-zēn', -zĭn)   
A colorless, fuming, corrosive liquid with an odor like ammonia that is a powerful reducing agent. It can be combined with organic compounds to form jet and rocket fuels and is also used to make explosives, fungicides, medicines, and photographic chemicals. Chemical formula: N2H4.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for hydrazine

Some English speakers likely know this word

Word Value for hydrazine

Scrabble Words With Friends