water hammer water hair grass • water hazard · · · Info · Definitions · Characters · · water hammer · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) the banging sound of steam in pipes. Synonyms: water hammer. · · Noun Definition 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 m latin small letter m U+006D r latin small letter r U+0072 t latin small letter t U+0074 w latin small letter w U+0077