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dry run

a rehearsal or practice exercise.
Military. practice in firing arms without using live ammunition.
Origin of dry run
1940-45, Americanism
Related forms
dry-run, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for dry-run

dry run

(military) practice in weapon firing, a drill, or a manoeuvre without using live ammunition
(informal) a trial or practice, esp in simulated conditions; rehearsal
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
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Slang definitions & phrases for dry-run

dry run

noun phrase

A tryout, practice version, or rehearsal of something planned: One more dry run, then tomorrow we do it (1940s+)


: so the medical staff could ''dry run'' their equipment

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Idioms and Phrases with dry-run

dry run

A trial exercise or rehearsal, as in Regard this as a dry run for tonight's ceremony. This term, using dry in the sense of “unproductive,” was at first employed mainly in the military for simulated bombings in which no bombs were dropped. [ c. 1940 ]
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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