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decongestant

American  
[dee-kuhn-jes-tuhnt] / ˌdi kənˈdʒɛs tənt /

adjective

  1. of or relating to a substance that relieves mucus congestion of the upper respiratory tract.


noun

decongestants plural
  1. any such substance.

decongestant British  
/ ˌdiːkənˈdʒɛstənt /

adjective

  1. relieving congestion, esp nasal congestion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a decongestant drug

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
decongestant Scientific  
/ dē′kən-jĕstənt /
  1. A medication that reduces congestion of the nose or sinuses, usually by causing vasoconstriction.


Other Word Forms

Noun Inflected Forms

Etymology

Origin of decongestant

First recorded in 1945–50; de- + congest + -ant

Explanation

A decongestant is like a traffic cop for your sinuses, helping clear up blockage so you can breathe easier when your nose is stuffy from a cold or an allergy. Decongestants work by shrinking swollen blood vessels in your nasal passages, much like deflating a balloon that's blocking a hallway. This action helps clear the congestion, allowing air to flow more freely, so you feel less stuffy. They are like little helpers that assist you in feeling better when you have a cold or allergies. Available in forms such as pills, sprays, and drops, decongestants are handy tools for those times when you need a clear path to breathe easy again.

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