noradrenaline

noun

nor·​adren·​a·​line ˌnȯr-ə-ˈdre-nᵊələn How to pronounce noradrenaline (audio)
variants or less commonly noradrenalin

Examples of noradrenaline 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.
Adrenaline and noradrenaline, hormones which increase alertness and reaction speed, are also released, but there is a fine balance between readiness and unreadiness. Charlotte Harpur, New York Times, 3 June 2026 This sympathetic surge is caused by the release of noradrenaline, which, in the context of cancer, has catastrophic consequences. Jacek Krywko, Scientific American, 4 Feb. 2026 Pheochromocytoma is a rare tumor that produces excess adrenaline and noradrenaline. Alexandria Nyembwe, Health, 27 Nov. 2025 This triggers a small region of the brain called the locus coeruleus, which releases noradrenaline and helps the brain retain new information. Deirdre Bardolf, FOXNews.com, 10 Nov. 2025 See All Example Sentences for noradrenaline

Word History

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of noradrenaline was in 1932

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Cite this Entry

“Noradrenaline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/noradrenaline. Accessed 16 Jun. 2026.

Kids Definition

noradrenaline

noun
nor·​adren·​a·​line ˌnȯr-ə-ˈdren-ᵊl-ən How to pronounce noradrenaline (audio)

Medical Definition

noradrenaline

noun
nor·​adren·​a·​line
variants also noradrenalin

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