- a sharp-pointed instrument enclosed in a cannula, used for withdrawing fluid from a cavity, as the abdominal cavity.
Origin of trocar
1700–10; earlier trocart < French, literally, three-sided, equivalent to tro- (variant of trois three) + cart, variant of carre side < Latin quadra something square
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for trocar
As the trocar is withdrawn, the canula should be pushed still further in.A Manual of the Operations of Surgery
The name Karkin was said by Arroyo de la Cuesta to signify "trocar," or "to trade."
If puncture with the trocar or aspiration be practised, shall all the fluid be withdrawn at once?
Mr Dun says that, should the trocar fail to extract it, it must be drawn to the surface by a small syringe made for the purpose.Cooley's Practical Receipts, Volume II
The operation is performed with a combined instrument called the trocar and cannula.Special Report on Diseases of the Horse
United States Department of Agriculture
- a surgical instrument for removing fluid from bodily cavities, consisting of a puncturing device situated inside a tube
C18: from French trocart literally: with three sides, from trois three + carre side
- A sharp-pointed surgical instrument, used with a cannula to puncture a body cavity for fluid aspiration.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.