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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

Work I’ve done as an expert witness has put me in front of investment committees defending decisions made under ESG frameworks.

From The Wall Street Journal Jun. 11, 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

David McFarlane, a marine safety consultant and accredited expert witness, said all vessels, regardless of whether or not they were moving, had "an obligation to keep a proper look-out".

From BBC Aug. 31, 2025

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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