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A medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body
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(mathematics) calculation by mathematical methods
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Activity by a military or naval force (as a maneuver or campaign)
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A planned activity involving many people performing various actions
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A process or series of acts especially of a practical or mechanical nature involved in a particular form of work
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A business especially one run on a large scale
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The activity of operating something (a machine or business etc.)
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(psychology) the performance of some composite cognitive activity; an operation that affects mental contents
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(computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction)
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Process or manner of functioning or operating
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The state of being in effect or being operative
SynonymDefinitionAntonym.com - English Synonym Dictionary
