decongest definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
transitive verb de·con·gest·ed, de·con·gest·ing, de·con·gests
To relieve the congestion of (sinuses, for example).
- deˌcon·gesˈtion noun
- deˌcon·gesˈtive adjective
decongest - Medical Definition
To relieve congestion, such as of the sinuses.