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 Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=6390
Last Editorial Review: 6/7/1998
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