cortisol

noun

cor·​ti·​sol ˈkȯr-tə-ˌsȯl How to pronounce cortisol (audio)
-ˌzȯl,
-ˌsōl,
-ˌzōl
: a glucocorticoid C21H30O5 produced by the adrenal cortex upon stimulation by ACTH that mediates various metabolic processes (such as gluconeogenesis), has anti-inflammatory and immunosuppressive properties, and whose levels in the blood may become elevated in response to physical or psychological stress

called also hydrocortisone

Examples of cortisol in a Sentence

Recent Examples on the Web
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In the first three days of their stay, cortisol levels were found to be almost three times higher than that of an ordinary household dog. Matt Robison, Newsweek, 25 Feb. 2025 Some evidence shows very high cortisol levels can suppress immune cell activity and make the body more vulnerable to infections.11 While short-term stress can temporarily boost immunity, long-term stress disrupts immune function and increases the risk of illness. Sarah Jividen, Health, 23 Feb. 2025 Factors such as lifestyle, cortisol levels, diet, and genetics have always been targeted as areas in-need of change. Tanya Akim, Forbes, 20 Feb. 2025 This included exercise and reducing her steroid injections until her body’s cortisol levels balanced out. Lauryn Higgins, Flow Space, 7 Feb. 2025 See All Example Sentences for cortisol

Word History

Etymology

cortisone + -ol entry 1

First Known Use

1951, in the meaning defined above

Time Traveler
The first known use of cortisol was in 1951

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Cite this Entry

“Cortisol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cortisol. Accessed 3 Mar. 2025.

Medical Definition

cortisol

noun
: a glucocorticoid C21H30O5 produced by the adrenal cortex upon stimulation by ACTH that mediates various metabolic processes (as gluconeogenesis), has anti-inflammatory and immunosuppressive properties, and whose levels in the blood may become elevated in response to physical or psychological stress

called also hydrocortisone

More from Merriam-Webster on cortisol

Last Updated: - Updated example sentences
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