non operating


used or engaged in performing operations: an operating surgeon.
of, for, or pertaining to operations: an operating budget.
of or pertaining to the proper operation of a machine, appliance, etc.: a manual of operating instructions.
Railroads. of, pertaining, or belonging to railroad workers, as engineers or firemen, who are directly engaged in the mechanical operation of trains: an operating union.

1800–10; operate + -ing1

nonoperating, adjective
unoperating, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Word Origin & History

c.1600, "to be in effect," from L. operari "to work, labor" (in L.L. "to have effect, be active, cause"); see operation. Surgical sense is first attested 1799. Meaning "to work machinery" is from 1864 in Amer.Eng. Operating system in the computer sense is from 1961.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

operate op·er·ate (ŏp'ə-rāt')
v. op·er·at·ed, op·er·at·ing, op·er·ates
To perform surgery.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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