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

Melatonin has more evidence for sleep timing, while L-theanine supports relaxation without causing sedation. — T'keyah Bazin, Verywell Health, 25 Sep. 2026

When to seek medical attention People who use kratom and begin breathing slowly or shallowly, or who become excessively drowsy or difficult to awaken, may be experiencing serious sedation that can interfere with breathing, Steinman said. — Melissa Rudy, FOXNews.com, 23 Sep. 2026

More than a week later, Leah’s care team was able to extubate her and reduce her sedation levels for the first time after a week of life support and multiple surgeries. — Desiree Anello, PEOPLE, 16 Sep. 2026

Orexin antagonists were developed as a treatment for insomnia, differing from conventional sleeping pills that induce sedation. — Harriet Marsden, TheWeek, 20 Aug. 2026

Word History

First Known Use

1543, in the meaning defined at sense 1

Rhymes for sedation

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

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