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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The work reveals the precise division between two chemical reactions — reduction and oxidation. Prabhat Ranjan Mishra, Interesting Engineering, 3 Apr. 2026 The primary antioxidant in rooibos is aspalathin (whose oxidation during fermentation gives the tea its red color), which is also known for its anti-inflammatory properties. Encyclopedia Britannica, 25 Mar. 2026 Thus, the process of oxidation commences. Caroline Lubinsky, Martha Stewart, 15 Mar. 2026 Refrigerating flour slows oxidation and helps deter pests like weevils and pantry moths. Hannah Lee Leidy, Bon Appetit Magazine, 13 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 8 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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