expert

  

Definition

Professional who has acquired knowledge and skills through study and practice over the years, in a particular field or subject, to the extent that his or her opinion may be helpful in fact finding, problem solving, or understanding of a situation. See also expert evidence.

Use expert in a sentence

  • The newer and younger employees in the research and development department seek out Jim for advice, because after twenty years of working in robotics, he is considered an expert in his field.

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  • If you are stuck in a rut you may need to bring in an expert to give you the best opinion that you can.

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  • The psychiatrist was called as an expert witness to testify at the trial of a man who killed his family, but was claiming insanity as his defense.

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