cor·​ti·​co·​ste·​roid | \ˌkȯr-ti-kō-ˈstir-ˌȯid also -ˈster- \

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

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 Your doctor may prescribe a corticosteroid cream, ointment, or oral medication to help keep inflammation and itching at bay during flare-ups, the Mayo Clinic says. Korin Miller, SELF, "What Causes Eczema, Anyway?," 13 July 2018 During an actual flare, your doctor might recommend certain medications to help control itching and repair your skin, including a corticosteroid cream or ointment, the Mayo Clinic says. Korin Miller, SELF, "6 Eczema Symptoms You Should Bring Up With Your Derm," 15 June 2018 Zilretta, which received Food and Drug Administration approval in October, treats pain as a corticosteroid is gradually released from tiny globes known as microspheres. Brian Gormley, WSJ, "The Heated Quest for Opioid Alternatives," 25 May 2018 Lobotomies for ulcerative colitis, and for mental illness, were halted in the late 1950s because of outrage at the barbarity of the procedure and the emergence of new drugs — antipsychotics for mental illness and corticosteroids for colitis. Jim Carrier, STAT, "Lobotomies were once used to treat this gut disease, part of a shameful medical history," 12 June 2018 But when given the standard treatments for an asthma attack, which included oral corticosteroids and inhaled bronchodilators, 19 failed to respond to their medications. Sonja Haller, USA TODAY, "Flu shots go a long way to keep kids with asthma out of the emergency room, study says," 4 June 2018 Following the accident, my doctor began administering facet injections, a combination of corticosteroids and local numbing agents, which provided long-term pain relief lasting from four to six months. Sarah Wilson As Told To Maria Carter, Woman's Day, "I Trusted My Doctor—Until I Became Addicted to Prescription Painkillers," 22 Apr. 2016

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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16 Dec 2018

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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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