n. [ Nitro- + carbon + L. oleum oil. ] (Chem.) See Nitromethane. [ 1913 Webster ]
n. [ F. trocart (or trois-quarts, i. e., three quarters); trois three (L. tres) + carre the side of a sword blade; -- so called from its triangular point. ] (Surg.) A stylet, usually with a triangular point, used for exploring tissues or for inserting drainage tubes, as in dropsy.