cor·​ti·​co·​ste·​roid | \ ˌkȯr-ti-kō-ˈstir-ˌȯid also -ˈster- How to pronounce corticosteroid (audio) \

Definition of corticosteroid

: any of various steroid hormones (such as cortisol, cortisone, or aldosterone) that are produced by the adrenal cortex (see cortex sense 1(a)1) from cholesterol also : any of various synthetic derivatives (such as prednisone or dexamethasone) of these steroid hormones that are used as drugs

Note: Corticosteroids are classified according to their physiological activity as glucocorticoids, which chiefly regulate carbohydrate, protein, and fat metabolism, and mineralocorticoids, which chiefly regulate electrolyte and fluid balance in the body. Androgens (such as androstenedione) are also produced by the adrenal cortex and are sometimes classified as corticosteroids.

Examples of corticosteroid in a Sentence

Recent Examples on the Web

The time period that allowed therapeutic usage of corticosteroids in joint treatment has been extended from the previous length of three days before a race to 14 days and horses will not be allowed to start until after the 14-day window. John Cherwa,, "Racing! Happy Fourth of July," 4 July 2019 The use of corticosteroids in joint treatment has been extended from a length of three days before a race to 14 days, and horses will not be allowed to start until after the 14-day window. San Diego Union-Tribune, "Del Mar strengthens safety standards following Santa Anita horse deaths," 2 July 2019 About the same time, inflammation-fighting corticosteroids such as methotrexate were introduced, further improving survival of children with ALL. Marie Mccullough,, "How conquering a rare leukemia in children revolutionized cancer care for millions," 6 June 2019 In more severe cases, your doctor may prescribe oral corticosteroids or antihistamines, said Zeichner. Htv National Desk, Houston Chronicle, "Woman’s blistering 'margarita burn' a warning about the popular summer drink," 5 June 2019 NSAIDs, corticosteroids, and applying warmth or cold may offer relief, as can drugs meant to impede how quickly your RA is progressing, the Mayo Clinic says. Korin Miller, SELF, "Here’s What It Means If Your Knee Just Won’t Stop Popping," 23 Sep. 2018 Another drug that may help is dexamethasone, the CDC says, a corticosteroid that will rapidly decrease the brain swelling involved here. Carolyn L. Todd, SELF, "What Exactly Is Altitude Sickness?," 20 Dec. 2018 Other drugs, like corticosteroids, can tamp down on corneal inflammation that exacerbates dry eye. Korin Miller, SELF, "This Is Why Your Eyes Get So Damn Dry—and How to Fix It," 14 Aug. 2018 To treat atopic dermatitis, experts will often recommend topical corticosteroids to battle inflammation, the Mayo Clinic says, but these can be too strong on your delicate eyelid skin. Korin Miller, SELF, "Here’s Exactly What to Do About Eczema on Your Eyelid," 3 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'corticosteroid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of corticosteroid

1944, in the meaning defined above

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15 Jul 2019

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The first known use of corticosteroid was in 1944

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cor·​ti·​co·​ste·​roid | \ ˌkȯrt-i-kō-ˈsti(ə)r-ˌȯid also -ˈste(ə)r-\

Medical Definition of corticosteroid

: any of various adrenal-cortex steroids (as corticosterone, cortisone, and aldosterone) that are divided on the basis of their major biological activity into glucocorticoids and mineralocorticoids

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