sedation

noun

se·​da·​tion si-ˈdā-shən How to pronounce sedation (audio)
1
: the inducing of a relaxed easy state especially by the use of sedatives
2
: a state resulting from or as if from sedation

Examples of sedation in a Sentence

For some patients, sedation may be necessary.
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.
Easy was under operation for around an hour with mild sedation, and the entire process took about four hours. — Greg Uyeno, IEEE Spectrum, 20 Oct. 2026 Rupert underwent multiple treatments, including procedures under standing sedation. — Celia Frazier, Denver Post, 9 Oct. 2026 As the caustic barbiturate finally started flowing into the IV lines, Pike did not fall into sedation quickly. — Keri Blakinger, ProPublica, 6 Oct. 2026 Melatonin has more evidence for sleep timing, while L-theanine supports relaxation without causing sedation. — T'keyah Bazin, Verywell Health, 25 Sep. 2026 See All Example Sentences for sedation

Word History

First Known Use

1543, in the meaning defined at sense 1

Time Traveler
The first known use of sedation was in 1543

Rhymes for sedation

See All Rhymes for sedation

Browse Nearby Words

sedateness
sedation
sedative
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Cite this Entry

“Sedation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sedation. Accessed 27 Oct. 2026.

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Medical Definition

sedation

noun
se·​da·​tion si-ˈdā-shən How to pronounce sedation (audio)
1
: the inducing of a relaxed easy state especially by the use of sedatives
2
: a state resulting from sedation see conscious sedation, deep sedation
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