Definition of Operator

1. Noun. (mathematics) a symbol or function representing a mathematical operation.

2. Noun. An agent that operates some apparatus or machine. "The operator of the switchboard"

3. Noun. Someone who owns or operates a business. "Who is the operator of this franchise?"
Generic synonyms: Businessman, Man Of Affairs
Specialized synonyms: Supermarketeer, Supermarketer
Derivative terms: Operate

4. Noun. A shrewd or unscrupulous person who knows how to circumvent difficulties.
Exact synonyms: Hustler, Wheeler Dealer
Language type: Colloquialism
Generic synonyms: Opportunist, Self-seeker
Specialized synonyms: Wire-puller
Derivative terms: Hustle

5. Noun. A speculator who trades aggressively on stock or commodity markets.
Generic synonyms: Plunger, Speculator

Definition of Operator

1. n. One who, or that which, operates or produces an effect.

Definition of Operator

1. Noun. One who operates. ¹

2. Noun. A telecommunications facilitator whose job is to establish temporary network connections. ¹

3. Noun. (mathematics) A function or other mapping that carries variables defined on a domain into another variable or set of variables in a defined range. ¹

4. Noun. Another name for Chinese whispers. ¹

5. Noun. (informal) A person who is adept at making deals or getting results, especially one who uses questionable methods. ¹

6. Noun. A member of a military Special Operations unit. ¹

7. Noun. (computing) The administrator of a channel or network on IRC. ¹

¹ Source:

Definition of Operator

1. a symbol that represents a mathematical function [n -S]

Medical Definition of Operator

1. The site on DNA to which a specific repressor protein binds and prevents the initiation of transcription at the adjacent promoter. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Operator

operations research
operative dentistry
operative field
operative myxoedema
operator (current term)
operator gene
operator region

Literary usage of Operator

Below you will find example usage of this term as found in modern and/or classical literature:

1. Representative American Plays by Arthur Hobson Quinn (1917)
"FIRST operator. It won't ever get out from this oflice Miss. [CAROLINE looks steadfastly at FIRST operator] We would n't be allowed to mention anything ..."

2. United States Supreme Court Reports by Lawyers Co-operative Publishing Company, United States Supreme Court (1889)
"Devices to open and close an aperture at a distance from the operator, in a great variety of forms, were old. As illustrations of those things which are ..."

3. South Eastern Reporter by West Virginia Supreme Court of Appeals, West Publishing Company, South Carolina Supreme Court (1911)
"There cannot, I think, be any doubt as to the character in which the- defendant's operator received the message at Bridgewater. ..."

4. The American Mathematical Monthly by Mathematical Association of America (1922)
"For instance, a characteristic operator of a group is defined as an operator ... In particular, the identity is a characteristic operator of every possible ..."

5. Descriptions of Occupations by United States Bureau of Labor Statistics, United States Employment Service (1918)
"MACHINE operator MAY Description: For the purpose of this classification of occupations the machine operator is defined as one who uses a special or ..."

6. Transactions of the American Institute of Electrical Engineers by American Institute of Electrical Engineers (1919)
"For calls from a manual subscriber to an automatic subscriber the procedure is as follows: The manual subscriber lifts his receiver and gets the operator ..."

7. The Encyclopedia Americana: A Library of Universal Knowledge (1920)
"The number of the desired line is then transmitted over the call circuit to the "B* operator, who, by visual inspection, selects an idle trunk line and ..."

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