redox

adjective

re·​dox ˈrē-ˌdäks How to pronounce redox (audio)
: of or relating to oxidation-reduction

Examples of redox 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.
Compounds in both these minerals are part of a chemical process called redox gradients, which refers to a series of gradual changes over physical space where chemicals can oxidize (lose electrons) or reduce (gain electrons). Amy J. Williams, The Conversation, 12 Sep. 2025 For instance, the new findings suggest the green-toned specks in muddy clay found in the outcrop could contain the mineral vivianite, which the News and Views authors say can specifically shed light on certain kinds of redox reactions that may have taken place on Mars. Monisha Ravisetti, Space.com, 10 Sep. 2025 Propagation of senescent phenotypes by extracellular HMGB1 is dependent on its redox state. Lucy Notarantonio, MSNBC Newsweek, 26 June 2025 However, the cathode rapidly stores and releases energy using both double-layer capacitance and fast redox reactions. IEEE Spectrum, 10 May 2025 Steven Chu, the former Department of Energy secretary turned Stanford professor, spoke about his team's work on developing an electrochemical way to unlock direct air capture using redox chemistry. Katie Fehrenbacher, Axios, 19 Mar. 2025 While the exchange of electrons with sulfur is relatively slow, iodine undergoes electron exchange (technically termed a redox reaction) extremely quickly. Ashley Belanger, Ars Technica, 17 Jan. 2025 The coveted metal is used in redox-flow batteries, which store excess charge from intermittent sources like solar and wind and feed it back to the grid. William Ralston, Wired, 16 Dec. 2021 What if bacteria buried in the mud were completing the redox reaction by somehow bypassing the oxygen-poor layers? Elizabeth Pennisi, Science | AAAS, 19 Aug. 2020

Word History

Etymology

reduction + oxidation

First Known Use

1928, in the meaning defined above

Time Traveler
The first known use of redox was in 1928

Browse Nearby Words

Cite this Entry

“Redox.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/redox. Accessed 19 Sep. 2025.

Medical Definition

redox

1 of 2 adjective
re·​dox ˈrē-ˌdäks How to pronounce redox (audio)
: of or relating to oxidation-reduction

redox

2 of 2 noun
Last Updated: - Updated example sentences
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