a surgical instrument consisting of a sharp stylet enclosed in a tube (cannula) and inserted through the wall of a body cavity: the stylet is withdrawn permitting fluid to drain off through the tube
also sp. tro′char·
Origin of trocarFrench trocart ; from trois (; from Classical Latin tres, three) + carre, a side, face ; from carrer, to make square ; from Classical Latin quadrare (see quadrate): from the shape of the point
A sharp-pointed surgical instrument, used with a cannula to puncture a body cavity for fluid aspiration.
Origin of trocarFrench trocart : trois, three (from Old French, from Latin tr&emacron;s; see trei- in Indo-European roots) + carre, side of an instrument (from Old French, from carrer, to square, from Latin quadrare, from quadrum, square; see kwetwer- in Indo-European roots).