operator: Meaning and Definition of

op•er•a•tor

1. a person who operates a machine, apparatus, or the like: a telegraph operator.
2. a person who operates a telephone switchboard, esp. for a telephone company.
3. a person who manages a working or industrial establishment, enterprise, or system: the operators of a mine.
4. a person who trades in securities, esp. speculatively or on a large scale.
5. a person who performs a surgical operation; a surgeon.
6. a differential operator.
1. a symbol for expressing a mathematical operation.
2. a function, esp. one transforming a function, set, etc., into another:a differential operator.
1. a person who accomplishes his or her purposes by devious means; faker; fraud.
2. a person who is adroit at overcoming, avoiding, or evading difficulties, regulations, or restrictions.
3. a person who is extremely successful with or smoothly persuasive to members of the opposite sex.
8. a segment of DNA that interacts with a regulatory molecule, preventing transcription of the adjacent region.