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| tro·car [ trṓ kr ] (plural tro·cars) |
noun |
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| Definition: |
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fluid-extracting instrument: a sharply pointed steel rod sheathed with a tight-fitting cylindrical tube cannula, used together to drain or extract fluid from a body cavity. The whole instrument is inserted then the trocar is removed, leaving the cannula in place.
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| [Early 18th century. < French trocart< carre, "side of an instrument" < Latin quadrum "square"] |
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