hydrazine

noun
hy·​dra·​zine | \ ˈhī-drə-ˌzēn How to pronounce hydrazine (audio) \

Definition of hydrazine

: a colorless fuming corrosive strongly reducing liquid base N2H4 used especially in fuels for rocket and jet engines also : an organic base derived from this compound

Examples of hydrazine in a Sentence

Recent Examples on the Web The use of hydrazine as a fuel for launch vehicles has been phased out for most of the world, Ars reports. Eric Berger, Ars Technica, "Rocket Report: Delta IV Heavy gets a new date, SpaceX to destroy test tank," 11 Sep. 2020 Yet the majority of China's launch fleet is powered by hydrazine fuel and nitrogen tetroxide oxidizer. Eric Berger, Ars Technica, "Rocket Report: Delta IV Heavy gets a new date, SpaceX to destroy test tank," 11 Sep. 2020 Voyager 1, Voyager 2, Cassini, and New Horizons all used a radioisotope power source but used hydrazine fuel in a chemical engine that quickly flung them to the far reaches of the solar system. Smithsonian Magazine, "Astronomers Prepare a Mission Concept to Explore the Ice Giant Planets," 8 Jan. 2020 The uranium fuel used in nuclear reactors has an energy density that is 4 million times higher than hydrazine, a typical chemical rocket propellant. Popular Science, "The next era of space travel should include nuclear-powered rockets," 27 May 2020 The satellite is fueled by AFM-315, which the Air Force first developed more than 20 years ago as an alternative to the typical satellite juice of choice, hydrazine. Daniel Oberhaus, WIRED, "A New Fuel for Satellites Is So Safe It Won’t Blow Up Humans," 12 June 2019 The fuel is a safer alternative to hydrazine, the fuel typically used on spacecraft that is toxic to humans and requires extensive safety precautions when handling it. Chabeli Herrera, orlandosentinel.com, "Tonight’s Falcon Heavy liftoff from Cape will be SpaceX’s ‘most difficult launch ever’," 24 June 2019 This new material could be an attractive option for satellite operators since hydrazine is particularly nasty stuff. Loren Grush, The Verge, "An atomic clock, ‘green’ propellant, and a sunlight-surfing sail are headed to space next week," 21 June 2019 Compared to hydrazine, which has a consistency similar to water, AFM-315 is viscous. Daniel Oberhaus, WIRED, "A New Fuel for Satellites Is So Safe It Won’t Blow Up Humans," 12 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hydrazine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hydrazine

1887, in the meaning defined above

History and Etymology for hydrazine

International Scientific Vocabulary

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Time Traveler for hydrazine

Time Traveler

The first known use of hydrazine was in 1887

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Statistics for hydrazine

Cite this Entry

“Hydrazine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrazine. Accessed 20 Jan. 2021.

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More Definitions for hydrazine

hydrazine

noun
hy·​dra·​zine | \ ˈhī-drə-ˌzēn How to pronounce hydrazine (audio) \

Medical Definition of hydrazine

: a colorless fuming corrosive strongly reducing liquid base N2H4 used in the production of various materials (as pharmaceuticals and plastics) also : an organic base derived from this compound

More from Merriam-Webster on hydrazine

Britannica English: Translation of hydrazine for Arabic Speakers

Britannica.com: Encyclopedia article about hydrazine

Comments on hydrazine

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