[ dee-hyoo-mid-uh-fahy-er, or, often, -yoo- ]
/ ˌdi hyuˈmɪd əˌfaɪ ər, or, often, -yu- /


an appliance for removing moisture from the air, as for lowering the humidity in a storage room.

Origin of dehumidifier

First recorded in 1920–25; de- + humidifier Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for dehumidifier

British Dictionary definitions for dehumidifier


/ (ˌdiːhjuːˈmɪdɪˌfaɪə) /


a device for reducing the moisture content of the atmosphere
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

Word Origin and History for dehumidifier



1921, agent noun from de- + humidify.

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for dehumidifier


[ dē′hyōō-mĭdə-fī′ər ]

A device used to remove water vapor from the air, thereby lowering the humidity of the air.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.