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Definition of Pectoral muscles

Pectoral muscles: Muscles of the "anterior chest" (the front of the chest). Familiarly called the pecs. The Latin "pectus" means "chest."

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=6390
Last Editorial Review: 6/14/2012

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