Definitions for Operation
ˌɒp əˈreɪ ʃənOper·a·tion

Princeton's WordNet(4.79 / 9 votes)Rate this definition:

1. operation(noun)

   the state of being in effect or being operative

   "that rule is no longer in operation"

2. operation(noun)

   a business especially one run on a large scale

   "a large-scale farming operation"; "a multinational operation"; "they paid taxes on every stage of the operation"; "they had to consolidate their operations"

3. operation(noun)

   a planned activity involving many people performing various actions

   "they organized a rescue operation"; "the biggest police operation in French history"; "running a restaurant is quite an operation"; "consolidate the companies various operations"

4. operation(noun)

   (computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction)

   "it can perform millions of operations per second"

5. operation, military operation(noun)

   activity by a military or naval force (as a maneuver or campaign)

   "it was a joint operation of the navy and air force"

6. operation, surgery, surgical operation, surgical procedure, surgical process(noun)

   a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body

   "they will schedule the operation as soon as an operating room is available"; "he died while undergoing surgery"

7. operation, procedure(noun)

   a process or series of acts especially of a practical or mechanical nature involved in a particular form of work

   "the operations in building a house"; "certain machine tool operations"

8. operation, functioning, performance(noun)

   process or manner of functioning or operating

   "the power of its engine determines its operation"; "the plane's operation in high winds"; "they compared the cooking performance of each oven"; "the jet's performance conformed to high standards"

9. process, cognitive process, mental process, operation, cognitive operation(noun)

   (psychology) the performance of some composite cognitive activity; an operation that affects mental contents

   "the process of thinking"; "the cognitive operation of remembering"

10. mathematical process, mathematical operation, operation(noun)

    (mathematics) calculation by mathematical methods

    "the problems at the end of the chapter demonstrated the mathematical processes involved in the derivation"; "they were learning the basic operations of arithmetic"

11. operation(noun)

    the activity of operating something (a machine or business etc.)

    "her smooth operation of the vehicle gave us a surprisingly comfortable ride"

Wiktionary(3.00 / 1 vote)Rate this definition:

1. operation(Noun)

   The method by which a device performs its function.

   It is dangerous to look at the beam of a laser while it is in operation.

   Etymology: From operari, from opus, operis

2. operation(Noun)

   The method or practice by which actions are done.

   Etymology: From operari, from opus, operis

3. operation(Noun)

   A planned undertaking.

   Etymology: From operari, from opus, operis

4. operation(Noun)

   A business or organization.

   Etymology: From operari, from opus, operis

5. operation(Noun)

   a surgical procedure.

   She had an operation to remove her appendix.

   Etymology: From operari, from opus, operis

6. operation(Noun)

   a procedure for generating a value from one or more other values (the operands; the value for any particular operands is unique)

   Etymology: From operari, from opus, operis

7. operation(Noun)

   a military campaign (w:Operation Desert Storm)

   Etymology: From operari, from opus, operis

Freebase(4.00 / 2 votes)Rate this definition:

1. Operation

   In its simplest meaning in mathematics and logic, an operation is an action or procedure which produces a new value from one or more input values, called "operands". There are two common types of operations: unary and binary. Unary operations involve only one value, such as negation and trigonometric functions. Binary operations, on the other hand, take two values, and include addition, subtraction, multiplication, division, and exponentiation. Operations can involve mathematical objects other than numbers. The logical values true and false can be combined using logic operations, such as and, or, and not. Vectors can be added and subtracted. Rotations can be combined using the function composition operation, performing the first rotation and then the second. Operations on sets include the binary operations union and intersection and the unary operation of complementation. Operations on functions include composition and convolution. Operations may not be defined for every possible value. For example, in the real numbers one cannot divide by zero or take square roots of negative numbers. The values for which an operation is defined form a set called its domain. The set which contains the values produced is called the codomain, but the set of actual values attained by the operation is its range. For example, in the real numbers, the squaring operation only produces nonnegative numbers; the codomain is the set of real numbers but the range is the nonnegative numbers.

Dictionary of Military and Associated Terms(0.00 / 0 votes)Rate this definition:

1. operation

   1. A military action or the carrying out of a strategic, operational, tactical, service, training, or administrative military mission. 2. The process of carrying on combat, including movement, supply, attack, defense, and maneuvers needed to gain the objectives of any battle or campaign.

British National Corpus

1. Spoken Corpus Frequency

   Rank popularity for the word 'Operation' in Spoken Corpus Frequency: #995

2. Written Corpus Frequency

   Rank popularity for the word 'Operation' in Written Corpus Frequency: #1373

3. Nouns Frequency

   Rank popularity for the word 'Operation' in Nouns Frequency: #241

Anagrams for Operation »

1. petronoia

How to pronounce Operation?

1. 

   Alex

   US English

   

   Daniel

   British

   

   Karen

   Australian

   

   Veena

   Indian

How to say Operation in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Operation in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of Operation in Pythagorean Numerology is: 5

Examples of Operation in a Sentence

1. Ukrainian President Petro Poroshenko:

   We discussed today the possibility of co-operation in the sphere of nuclear energy, there is the possibility for Ukraine to buy Australian uranium for our nuclear power stations.

2. Gail Besner:

   It was an optimal operation, not only were we able to separate them, but they will have good function after surgery.

3. Michelle Whelan:

   With the treatment plus the operation he’s had here, we think he can learn to walk, it’s such a rare condition, we don’t know what lies ahead for him in the future.

4. Andrew Cuomo:

   The tracing operation is tremendously large and challenging.

5. Navalny Instagram via AP:

   [There is a] huge cover-up operation, there is no criminal investigation so far. If Putin is not responsible, why there is no investigation?

Images & Illustrations of Operation

Popularity rank by frequency of use