operating

[ op-uh-rey-ting ]
/ ˈɒp əˌreɪ tɪŋ /

adjective

used or engaged in performing operations: an operating surgeon.
of, for, or pertaining to operations: an operating budget.
of or relating 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.

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Origin of operating

First recorded in 1800–10; operate + -ing1

OTHER WORDS FROM operating

non·op·er·at·ing, adjectiveun·op·er·at·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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