thoracic

Etymology

From Ancient Greek θωρακικός (thōrakikós, “suffering in the chest, of the thorax”), from θώραξ (thṓrax, “thorax”).

adj

1. (anatomy) Of the thorax.
   Those wings were powered by massive thoracic muscles—muscles no longer needed by a flightless queen. 2016, Justin O. Schmidt, The Sting of the Wild, Johns Hopkins University Press,, page 106

noun

1. (zoology) One of a group of fishes having the ventral fins placed beneath the thorax or beneath the pectoral fins.