oxidation

noun

ox·​i·​da·​tion ˌäk-sə-ˈdā-shən How to pronounce oxidation (audio)
1
: the act or process of oxidizing
2
: the state or result of being oxidized
oxidative adjective
oxidatively adverb

Examples of oxidation in a Sentence

Recent Examples on the Web
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This metal–polyphenol network acts like a molecular shield, preventing oxidation while also improving light absorption through charge-transfer effects. Rupendra Brahambhatt, Interesting Engineering, 12 Apr. 2026 This oily layer keeps oxygen from reacting with the flesh and can slow, if not completely prevent, the oxidation process. Stacey Lastoe, Southern Living, 9 Apr. 2026 Another important adaptation is metabolic heat generation, which produces internal warmth through muscle shivering and the oxidation of brown adipose tissue (fatty connective tissue). Encyclopedia Britannica, 8 Apr. 2026 Thus, the process of oxidation commences. Caroline Lubinsky, Martha Stewart, 15 Mar. 2026 See All Example Sentences for oxidation

Word History

Etymology

French, from oxider, oxyder to oxidize, from oxide

First Known Use

1745, in the meaning defined at sense 1

Time Traveler
The first known use of oxidation was in 1745

Browse Nearby Words

Cite this Entry

“Oxidation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxidation. Accessed 14 Apr. 2026.

Kids Definition

oxidation

noun
ox·​i·​da·​tion ˌäk-sə-ˈdā-shən How to pronounce oxidation (audio)
1
: the process of oxidizing
2
: the state or result of being oxidized
oxidative adjective

Medical Definition

oxidation

noun
ox·​i·​da·​tion ˌäk-sə-ˈdā-shən How to pronounce oxidation (audio)
1
: the act or process of oxidizing
2
: the state or result of being oxidized

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