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oxidizer

American

[ok-si-dahy-zer] / ˈɒk sɪˌdaɪ zər /

noun

Chemistry.

oxidant.

oxidizer British

/ ˈɒksɪˌdaɪzə /

noun

an oxidant, esp a substance that combines with the fuel in a rocket engine

"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

Other Word Forms

antioxidizer

noun

Etymology

Origin of oxidizer

First recorded in 1870–75; oxidize + -er ¹

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

oxidizer

Liquid-fuel rockets, on the other hand, can be cycled on and off and combine an oxidizer, like cryogenic liquid oxygen, often with liquid hydrogen.

From The Wall Street Journal ● Jun. 14, 2026

Hydroxyl plays a key role in the atmosphere as its primary oxidizer.

From Science Daily ● Apr. 21, 2026

City officials said the process of delivering the oxidizer sparked the explosions.

From Washington Times ● Dec. 30, 2023

Because so many different types of goods flow through Amazon’s warehouses, the company has designated sites for flammable, oxidizer and corrosive products.

From Seattle Times ● Dec. 4, 2023

A rocket solves this problem by carrying everything it needs with it, not only fuel but also the oxidizer needed to mix with the fuel and cause it to burn.

From "Flying to the Moon: An Astronaut's Story" by Michael Collins

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023