noun
: the division of the body cavity of a warm-blooded vertebrate lying anterior to or above the diaphragm, bounded peripherally by the wall of the chest, and containing the heart and lungs
noun
: the division of the body cavity of a warm-blooded vertebrate lying anterior to or above the diaphragm, bounded peripherally by the wall of the chest, and containing the heart and lungs
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012