Usage examples for thorax:

• Coarse, round punctures are thickly sprinkled over the upper surface of the thorax and wing- covers. "The Pecan and its Culture" – H. Harold Hume

• Descending aorta in the thorax "Surgical Anatomy" – Joseph Maclise

• On opening the thorax there was a faint spirituous odour discernible. "The Mystery of a Hansom Cab" – Fergus Hume