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expert witness

American  

noun

  1. a person, as a physician, who provides testimony at a legal proceeding in the form of professional opinions.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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Judges at Manhattan's second circuit of appeals sent the previously dismissed cases back to a lower court for further proceedings, after ruling that a district judge had improperly excluded expert witness testimony.

From Barron's Jul. 13, 2026

Shideler admitted at trial that he had helped craft the indictment before eventually also appearing as an expert witness.

From Salon Jul. 3, 2026

An expert witness said no studies or clinical data suggested any of the treatments described given to the patients could cure any type of cancer.

From BBC Apr. 28, 2026

Wise is a paid consultant for Pfizer, Bayer, K36, OncoC4, AstraZeneca, and Janssen Pharmaceuticals, and is an expert witness for Exxon Mobil.

From Science Daily Feb. 25, 2026

At times, too, she was needed as an expert witness for trials.

From "The Woman All Spies Fear" by Amy Butler Greenfield

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