pectoralis pectoral girdle • pectoralis major · · · Info · Definitions · Synonyms · Characters · · pectoralis · · Text Latin · · Script 10 · · Length 4 · · Syllables Definitions · · · (noun) either of two large muscles of the chest. Synonyms: pectoral, pectoral muscle, musculus pectoralis, pecs. · · Noun Definition 1 Synonyms · · · pectoral · · Synonym 1 pectoral muscle · · Synonym 2 musculus pectoralis · · Synonym 3 pecs · · Synonym 4 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074