dioxide

noun

di·​ox·​ide (ˌ)dī-ˈäk-ˌsīd How to pronounce dioxide (audio)
: an oxide (such as carbon dioxide) containing two atoms of oxygen in the molecule

Examples of dioxide in a Sentence

Recent Examples on the Web Mineral formulations rely on flecks of minerals spread on top of the skin to physically reflect the sun’s rays; zinc dioxide and titanium dioxide are the two ingredients typically used in these products. Keren Landman, Vox, 10 June 2024 Sulfur dioxide, a reactive gas found in many marine fuels, is also released when those fuels are burned. Hayley Smith, Los Angeles Times, 9 June 2024 Sulfur dioxide pollution has fallen by more than 90 percent in the U.S., thanks to EPA rules—one of the great environmental protection achievements in the history of the U.S. David Hawkins, Scientific American, 29 Sep. 2023 Nitrogen dioxide is released into the atmosphere when cars, trucks, buses, power plants and off-road equipment burn fuel. Will Sullivan, Smithsonian Magazine, 5 Sep. 2023 See all Example Sentences for dioxide 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'dioxide.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

International Scientific Vocabulary

First Known Use

circa 1847, in the meaning defined above

Time Traveler
The first known use of dioxide was circa 1847

Dictionary Entries Near dioxide

Cite this Entry

“Dioxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dioxide. Accessed 20 Jul. 2024.

Kids Definition

dioxide

noun
di·​ox·​ide (ˈ)dī-ˈäk-ˌsīd How to pronounce dioxide (audio)
: an oxide containing two atoms of oxygen in the molecule

Medical Definition

dioxide

noun
di·​ox·​ide (ˈ)dī-ˈäk-ˌsīd How to pronounce dioxide (audio)
: an oxide (as carbon dioxide) containing two atoms of oxygen in a molecule

More from Merriam-Webster on dioxide

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