monoxide

noun

mon·​ox·​ide mə-ˈnäk-ˌsīd How to pronounce monoxide (audio)
: an oxide containing one atom of oxygen in a molecule

Examples of monoxide in a Sentence

Recent Examples on the Web
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The team theorizes that shocks initially create these thin filaments in the process, releasing silicon monoxide and organic molecules like methanol, methyl cyanide, and cyanoacetylene into the interstellar medium. Robert Lea, Space.com, 21 Mar. 2025 The filaments were detected in the emission lines of both silicon monoxide (SiO)—which is particularly useful for detecting the presence of shock waves in the cloud—and eight other molecules. Thomas G. Moukawsher, Newsweek, 21 Mar. 2025 Yang’s team hypothesizes that shock processes give rise to the filaments, because those forces release silicon monoxide (SiO), which is a useful molecule for detecting shock waves. Paul Smaglik, Discover Magazine, 20 Mar. 2025 Best Home Security Systems • Best Outdoor Security Cameras Sensor Types Carbon monoxide alarms use a variety of detection methods, and the kind of sensor is often directly related to the power source. Kaz Weida, Popular Mechanics, 25 Apr. 2023 See All Example Sentences for monoxide

Word History

Etymology

International Scientific Vocabulary

First Known Use

1868, in the meaning defined above

Time Traveler
The first known use of monoxide was in 1868

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Cite this Entry

“Monoxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monoxide. Accessed 29 Mar. 2025.

Kids Definition

monoxide

noun
mon·​ox·​ide mə-ˈnäk-ˌsīd How to pronounce monoxide (audio)
: an oxide containing only one oxygen atom in the molecule

Medical Definition

monoxide

noun
mon·​ox·​ide mə-ˈnäk-ˌsīd How to pronounce monoxide (audio)
: an oxide containing one atom of oxygen per molecule see carbon monoxide

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