extensor muscle extensor • extensor thrust · · · Info · Definitions · Synonyms · Characters · · extensor muscle · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) a skeletal muscle whose contraction extends or stretches a body part. Synonyms: extensor muscle, extensor. · · Noun Definition 1 Synonyms · · · extensor · · Synonym 1 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 x latin small letter x U+0078