sedation

noun

se·​da·​tion si-ˈdā-shən 

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

However, first-generation antihistamines can also cause drowsiness, sedation, and fatigue, which can affect alertness, concentration, and memory. —Karen Berger, Verywell Health, 5 Feb. 2026

In Oregon, where medical assistance in dying has been legal for nearly 30 years, the state’s Health Authority reported in 2024 that the drugs can cause side effects, including seizures, regurgitation, and regaining consciousness after an initial sedation. —Elizabeth Bruenig, The Atlantic, 4 Feb. 2026

That translates to less need for sedation, faster recovery, and more positive associations with oral health. —Henry I. Miller, STAT, 28 Jan. 2026

Gopi says many existing sleep products rely on sedation or constant noise. —Soundhealth, New York Daily News, 16 Jan. 2026

Word History

First Known Use

1543, in the meaning defined at sense 1

Rhymes for sedation

• ablation
• bination
• carnation
• cassation
• castration
• causation
• centration
• cessation
• cetacean
• chelation
• citation
• collation

Medical Definition

sedation

noun

se·​da·​tion si-ˈdā-shən 

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