papillary muscle papillary • papillary tumor · · · Info · Definitions · Characters · · papillary muscle · · Text Common · · Latin · · Scripts 16 · · Length 6 · · Syllables Definitions · · · (noun) any of several muscles associated with the atrioventricular valves. Synonyms: papillary muscle. Example: "The papillary muscles contract during systole to prevent regurgitation of blood into the atria." · · Noun Definition 1 Characters · · space U+0020 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 m latin small letter m U+006D p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075 y latin small letter y U+0079