hardening

noun

hard·​en·​ing ˈhärd-niŋ How to pronounce hardening (audio)
ˈhär-dᵊn-iŋ
: sclerosis sense 1
hardening of the arteries

Examples of hardening 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 headlong rush to launch MVPs can mean skipping meaningful user validation, ethical vetting and technical hardening. Paresh Sagar, Forbes.com, 22 Aug. 2025 Atherosclerotic cardiovascular disease is the hardening of the arteries due to the gradual buildup of plaque. Cody Copeland, Fort Worth Star-Telegram, 21 Aug. 2025 The hardening of views about Palestinians also reflects longer-term trends in Israeli society. Dahlia Scheindlin, Foreign Affairs, 13 Aug. 2025 Ceasefire negotiations between Israel and the Hamas terrorist organization hit a setback Thursday, as Prime Minister Benjamin Netanyahu recalled Israel’s negotiating delegation from Doha following what officials described as a hardening of Hamas’ demands. Efrat Lachter, FOXNews.com, 24 July 2025 See All Example Sentences for hardening

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of hardening was in the 15th century

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Cite this Entry

“Hardening.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hardening. Accessed 10 Sep. 2025.

Kids Definition

hardening

noun
hard·​en·​ing
: sclerosis
hardening of the arteries

Medical Definition

hardening

noun
hard·​en·​ing ˈhärd-niŋ, -ᵊn-iŋ How to pronounce hardening (audio)
: sclerosis sense 1
hardening of the arteries

More from Merriam-Webster on hardening

Last Updated: - Updated example sentences
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