pectoralis minor
/pɛktəˌreɪlɪs ˈmʌɪnə/ /pɛktəˌrɑːlɪs ˈmʌɪnə/Anatomy and Zoology
noun
A chest muscle involved primarily in shoulder movement (including the upward movement of the wing in birds), in humans originating from the anterior surface of the third to fifth ribs and inserting on the scapula.
Origin
Mid 18th century. From post-classical Latin pectoralis minor from pectoralis + classical Latin minor, originally after French petit pectoral.