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 ]