Thoracic

Part of speech: noun (n.)

One of a group of fishes having the ventral fins placed beneath the thorax or beneath the pectorial fins.

Part of speech: adjective (a.)

Of or pertaining to the thorax, or chest. Thoracic duct (Anat.), the great trunk of the lymphatic vessels, situated on the ventral side of the vertebral column in the thorax and abdomen. See Illust. of Lacteal.