Thoracic

1. n. One of a group of fishes having the ventral fins placed beneath the thorax or beneath the pectorial fins.
2. a. Of or pertaining to the thorax, or chest.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.