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WordReference Random House Learner's Dictionary of American English © 2024op•er•a•tor /ˈɑpəˌreɪtɚ/USA pronunciation n. [countable]- a person who operates a machine or apparatus, esp. a telephone switchboard.
- a person who manages an industrial establishment or a business:a hotel operator.
- Informal Termsa person who accomplishes his or her purposes by cleverness or in slightly dishonest ways:He's a smooth operator.
See -oper-. WordReference Random House Unabridged Dictionary of American English © 2024op•er•a•tor (op′ə rā′tər),USA pronunciation n. - a person who operates a machine, apparatus, or the like:a telegraph operator.
- Telecommunicationsa person who operates a telephone switchboard, esp. for a telephone company.
- a person who manages a working or industrial establishment, enterprise, or system:the operators of a mine.
- a person who trades in securities, esp. speculatively or on a large scale.
- a person who performs a surgical operation;
a surgeon. - Mathematics
- a symbol for expressing a mathematical operation.
- a function, esp. one transforming a function, set, etc., into another:a differential operator.
- Informal Terms
- a person who accomplishes his or her purposes by devious means;
faker;
fraud. - a person who is adroit at overcoming, avoiding, or evading difficulties, regulations, or restrictions.
- a person who is extremely successful with or smoothly persuasive to members of the opposite sex.
- Geneticsa segment of DNA that interacts with a regulatory molecule, preventing transcription of the adjacent region.
- Late Latin, equivalent. to operā(rī) to work, effect (see operate) + Latin -tor -tor
- 1590–1600
Collins Concise English Dictionary © HarperCollins Publishers:: operator /ˈɒpəˌreɪtə/ n - a person who operates a machine, instrument, etc, esp, a person who makes connections on a telephone switchboard or at an exchange
- a person who owns or operates an industrial or commercial establishment
- a speculator, esp one who operates on currency or stock markets
- informal a person who manipulates affairs and other people
- any symbol, term, letter, etc, used to indicate or express a specific operation or process, such as Δ (the differential operator)
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