operation

[ op-uh-rey-shuh n ]
/ ˌɒp əˈreɪ ʃən /

noun

Origin of operation

1350–1400; Middle English operacioun < Latin operātiōn- (stem of operātiō), equivalent to operāt(us) (see operate) + -iōn- -ion

Related forms

mis·op·er·a·tion, nounpre·op·er·a·tion, nounre·op·er·a·tion, nounsub·op·er·a·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for operation

British Dictionary definitions for operation

operation

/ (ˌɒpəˈreɪʃən) /

noun

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

Medicine definitions for operation

operation

[ ŏp′ə-rāshən ]

n.

A surgical procedure, usually using instruments, for remedying an injury, ailment, defect, or dysfunction.
The act, manner, or process of functioning.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for operation

operation

[ ŏp′ə-rāshən ]

Medicine A surgical procedure for remedying an injury, ailment, defect, or dysfunction.
Mathematics A process or action, such as addition, substitution, transposition, or differentiation, performed in a specified sequence and in accordance with specific rules.
A logical operation.
Computer Science An action resulting from a single instruction.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.