verb (used with object)

to unfasten and separate; disengage; disunite.
Military. to send away (a regiment, ship, etc.) on a special mission.

Origin of detach

1470–80; < Middle French détacher, Old French destachier; see dis-1, attach
Related formsde·tach·a·ble, adjectivede·tach·a·bil·i·ty, nounde·tach·a·bly, adverbde·tach·er, nounnon·de·tach·a·bil·i·ty, nounnon·de·tach·a·ble, adjectivepre·de·tach, verb (used with object)self-de·tach·ing, adjectiveun·de·tach·a·ble, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Contemporary Examples of detachable

Historical Examples of detachable

British Dictionary definitions for detachable


verb (tr)

to disengage and separate or remove, as by pulling; unfasten; disconnect
military to separate (a small unit) from a larger, esp for a special assignment
Derived Formsdetachable, adjectivedetachability, noundetacher, noun

Word Origin for detach

C17: from Old French destachier, from des- dis- 1 + attachier to attach
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 detachable

1818; see detach + -able.



1680s, from French détacher "to detach, untie," from Old French destachier, from des- "apart" + attachier "attach" (see attach). Related: Detached; detaching.

Online Etymology Dictionary, © 2010 Douglas Harper

detachable in Medicine




To separate or unfasten; disconnect.
To remove from association or union with something.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.