A pointed hollow cylindrical device used surgically to insert cannulas, etc., into body cavities, or to aspirate fluids
trocar
الواصلة
tro·car
النطق
علم أصول الكلمات
(noun.) circa 1706. French trocart, from trois three + carre side of a sword blade, from carrer to make square, from Latin quadrare; more at THREE, QUADRATE.