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Definition of "operator" []

  • One who operates a machine or device: a switchboard operator. (noun)
  • The owner or manager of a business or an industrial enterprise. (noun)
  • One who deals aggressively in stocks or commodities. (noun)
  • Informal A person who is adept at accomplishing goals through shrewd or unscrupulous maneuvers. (noun)
  • Mathematics A function, especially one from a set to itself, such as differentiation of a differentiable function or rotation of a vector. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "operator" in a sentence
  • "In this book I'll use the term operator throughout."
  • "Under federal law, BP, as the lead project operator, is responsible for all clean-up costs associated with the spill."
  • "The drone operator is safer than the fighter pilot, but safety has rarely been the key variable in determining whether a particular task is “military” or not."