One of the mysteries of the English language finally explained.
Any of the major pectoral muscles in tetrapods; specifically = pectoralis major.
Early 17th century; earliest use found in Helkiah Crooke (1576–1648), physician and anatomist. From post-classical Latin pectoralis, use as noun (short for pectoralis musculus) of classical Latin pectorālis, adjective.
In this article we explore how to impress employers with a spot-on CV.