decongestive

[ dee-kuh n-jes-tiv ]
/ ˌdi kənˈdʒɛs tɪv /

adjective Medicine/Medical.

relieving or tending to relieve congestion.

Origin of decongestive

First recorded in 1900–05; de- + congestive
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019