Simple 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
Full Definition of decongestant
: an agent that relieves congestion (as of mucous membranes)
First Known Use of decongestant
Rhymes with decongestant
Learn More about decongestant
Medical Dictionary: Definition of "decongestant" Spanish Central: Translation of "decongestant" Nglish: Translation of "decongestant" for Spanish speakers Britannica.com: Encyclopedia article about "decongestant"
Seen and Heard
What made you want to look up decongestant? Please tell us where you read or heard it (including the quote, if possible).