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decongestant

[dee-kuh n-jes-tuh nt] /ˌdi kənˈdʒɛs tənt/ Pharmacology
adjective
1.
of or relating to a substance that relieves mucus congestion of the upper respiratory tract.
noun
2.
any such substance.
Origin of decongestant
1945-1950
1945-50; de- + congest + -ant
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for decongestant

decongestant

/ˌdiːkənˈdʒɛstənt/
adjective
1.
relieving congestion, esp nasal congestion
noun
2.
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
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Word Origin and History for decongestant
n.

1950, from de- + congestant (see congest).

Online Etymology Dictionary, © 2010 Douglas Harper
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decongestant in Medicine

decongestant de·con·ges·tant (dē'kən-jěs'tənt)
n.
A medication or treatment that breaks up congestion, as that of the sinuses, by reducing swelling. adj.
Capable of relieving congestion.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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decongestant in Science
decongestant
  (dē'kən-jěs'tənt)   
A medication that reduces congestion of the nose or sinuses, usually by causing vasoconstriction.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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