Pectoralis

the primary muscles of the chest
Found on http://www.encyclo.co.uk/local/20899

pectoralis

(pek″tә-ra´lis) (-ral´is) Latin word meaning thoracic; a term used in anatomy.
Found on http://www.encyclo.co.uk/local/21001

pectoralis

pectoralis Either of two muscles on each side of the upper and anterior part of the thorax. The action of the larger (pectoralis major) assists in drawing the shoulder forward and rotating the arm inward, and the action of the smaller (pectoralis minor) assists in drawing the shoulder downward and forward.
Found on http://www.wordinfo.info/words/index/info/view_unit/1588/

pectoralis

adjective, Latin pectoris = of the front of the chest.
Found on http://www.anatomy.usyd.edu.au/glossary/glossary.cgi?
No exact match found