heart valve heart urchin • heart ventricle · · · Info · Definitions · Synonyms · Characters · · heart valve · · Text Common · · Latin · · Scripts 11 · · Length 2 · · Syllables Definitions · · · (noun) a valve to control one-way flow of blood. Synonyms: heart valve, cardiac valve. · · Noun Definition 1 (noun) an implant that replaces a natural cardiac valve. Synonyms: heart valve. · · Noun Definition 2 Synonyms · · · cardiac valve · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C r latin small letter r U+0072 t latin small letter t U+0074 v latin small letter v U+0076