[dee-kuh m-pres]

verb (used with object)

to cause to undergo decompression.

verb (used without object)

to undergo decompression.
Informal. to relax; unwind.

Origin of decompress

1900–05; translation of French décomprimer. See de-, compress
Related formsde·com·pres·sive, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for decompress

Contemporary Examples of decompress

Historical Examples of decompress

  • He cited the waste of oxygen which resulted by having to decompress Bandit every time someone left or entered the ship.

British Dictionary definitions for decompress



to relieve (a substance) of pressure or (of a substance) to be relieved of pressure
to return (a diver, caisson worker, etc) to a condition of normal atmospheric pressure gradually from a condition of increased pressure or (of a diver, etc) to be returned to such a condition
Derived Formsdecompression, noundecompressive, adjective
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 decompress

1905, from de- + compress. Related: Decompressed; decompressing.

Online Etymology Dictionary, © 2010 Douglas Harper