ball valve ball up • ballweed · · · Info · Definitions · Characters · · ball valve · · Text Common · · Latin · · Scripts 10 · · Length 2 · · Syllables Definitions · · · (noun) any valve that checks flow by the seating of a ball. Synonyms: ball valve. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 l latin small letter l U+006C v latin small letter v U+0076