foreign substance
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.
Scientists classify it as a xeno-autoantigen, a foreign substance that becomes incorporated into the body's own tissues and can provoke an immune reaction.
From Science Daily ● Oct. 18, 2026
New York Yankees pitcher Domingo Germán was ejected from a May 16 game in Toronto for using a foreign substance on the mound and suspended 10 games by Major League Baseball the following day.
From Washington Times ● Jun. 14, 2023
He claimed the stickiness was caused by rosin and sweat and not by a foreign substance.
From Seattle Times ● Apr. 20, 2023
Mets’ Max Scherzer was ejected while pitching against the Dodgers for having a foreign substance on his glove and a potential substance on his hand.
From Los Angeles Times ● Apr. 19, 2023
Later, however, a foreign substance made its appearance in the wound, and was removed by the mother of the patient with a pair of embroidery scissors; it proved to be a copper cent.
From Telepathy and the Subliminal Self by R. Osgood Mason
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