‖n. [ NL., fr. Gr. &unr_; thorax + &unr_; pricking, from &unr_; to prick, stab. ] (Surg.) The operation of puncturing the chest wall so as to let out liquids contained in the cavity of the chest. [ 1913 Webster ]
a. [ Cf. F. thoracique. ] (Anat.) Of or pertaining to the thorax, or chest. [ 1913 Webster ]
Thoracic duct (Anat.),
n. [ Cf. F. thoracique. ] (Zool.) One of a group of fishes having the ventral fins placed beneath the thorax or beneath the pectorial fins. [ 1913 Webster ]
‖n. pl. [ NL. ] (Zool.) A division of cirripeds including those which have six thoracic segments, usually bearing six pairs of cirri. The common barnacles are examples. [ 1913 Webster ]
n. (Physiol.) Same as Stethometer. [ 1913 Webster ]
n. [ Thorax + plasty. ] (Med.) A remodeling or reshaping of the thorax; especially, the operation of removing the ribs, so as to obliterate the pleural cavity in cases of empyema. [ 1913 Webster ]
‖n. pl. [ NL. See Thorax, and Ostracoid, a. ] (Zool.) An extensive division of Crustacea, having a dorsal shield or carapec&unr_; &unr_;&unr_;niting all, or nearly all, of the thoracic somites to the head. It includes the crabs, lobsters, shrimps, and similar species. [ 1913 Webster ]
n. [ Gr. &unr_;, &unr_;, thorax + &unr_; to cut. ] (Surg.) The operation of opening the pleural cavity by incision. [ 1913 Webster ]
a. [ L. torus a couch, bed. ] Of or pertaining to a bed. [ R. ] [ 1913 Webster ]
n. [ L., fr. Gr. &unr_;. ]
☞ In mammals the thoracic cavity is completely separated from the abdominal by the diaphragm, but in birds and many reptiles the separation is incomplete, while in other reptiles, and in amphibians and fishes, there is no marked separation and no true thorax. [ 1913 Webster ]