de·​con·​ges·​tant | \ˌdē-kən-ˈjes-tənt \

Definition of decongestant 

: an agent that relieves congestion (as of mucous membranes)

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Other Words from decongestant

decongestant adjective

Examples of decongestant in a Sentence

Recent Examples on the Web

One of the stimulants, DMAA, was used in nasal decongestants in the 1940s but withdrawn from the market several decades later. Sumathi Reddy, WSJ, "The Illegal Ingredients in Your Dietary Supplements," 22 Oct. 2018 Pseudoephedrine, a nasal decongestant, is also a stimulant and is banned from competition. Umair Irfan, Vox, "Olympic swimmer Ryan Lochte broke doping rules. It happens far more than you think.," 24 July 2018 Early in the show, Walt abandons the real-life technique of transforming Sudafed, an over-the-counter decongestant, into meth. William Herkewitz, Popular Mechanics, "Breaking Bad Fact vs Fiction: Walter White's Secret Formula," 19 Aug. 2013 Drugs including some antidepressants, antihistamines, and decongestants can reduce your tear output, according to the American Optometric Association. Korin Miller, SELF, "How Can I Tell If I Have Chronic Dry Eye?," 21 June 2018 Other tropical plants are used in everything from chemotherapy to decongestants. Erin Blakemore, Washington Post, "Tropical plants help heal, in chemotherapy, decongestants and more," 17 Feb. 2018 Some states required a prescription for pseudoephedrine, the nasal decongestant used to make it. Washington Post, "The Health 202: Planned Parenthood goes on the offense," 14 Feb. 2018 Eucalyptus, a natural decongestant, breaks down mucus and helps open air passageways. Allison Young, Good Housekeeping, "4 Genius Ways Essential Oils Can Ease Congestion And Cough Better Than Over-The-Counter Meds," 20 Oct. 2017 Antihistamines or decongestants can relieve the pressure and pain. Jill U. Adams, Washington Post, "Here’s when you should see a doctor about headaches," 6 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'decongestant.' 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 decongestant

1947, in the meaning defined above

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Last Updated

16 Nov 2018

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Time Traveler for decongestant

The first known use of decongestant was in 1947

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More Definitions for decongestant



English Language Learners Definition of decongestant

: a medicine that helps stop thick fluid from building up in your nose, throat, or chest when you have a cold or similar illness


de·​con·​ges·​tant | \ˌdē-kən-ˈjes-tənt \

Medical Definition of decongestant 

(Entry 1 of 2)

: an agent that relieves congestion (as of mucous membranes)



Medical Definition of decongestant (Entry 2 of 2)

: relieving or tending to relieve congestion nasal decongestant action

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More from Merriam-Webster on decongestant

Rhyming Dictionary: Words that rhyme with decongestant

Spanish Central: Translation of decongestant

Nglish: Translation of decongestant for Spanish Speakers Encyclopedia article about decongestant

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