Water hammer
Water hammer Wa"ter ham"mer (Physics) 1. A vessel partly filled with water, exhausted of air, and hermetically sealed. When reversed or shaken, the water being unimpeded by air, strikes the sides in solid mass with a sound like that of a hammer. [1913 Webster]

2. A concussion, or blow, made by water in striking, as against the sides of a pipe or vessel containing it. [1913 Webster]

3. A metal hammer used when heated, as by dipping in hot water, to blister the skin, as for counterritation. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Water hammer — (or, more generally, fluid hammer) is a pressure surge or wave resulting when a fluid in motion is forced to stop or change direction suddenly (Momentum Change). Water hammer commonly occurs when a valve is closed suddenly at an end of a pipeline …   Wikipedia

  • water hammer — n. 1. the hammering sound caused in a pipe containing water when live steam is passed through it 2. the thump of water in a pipe, caused by an air lock, when a faucet is suddenly closed …   English World dictionary

  • water-hammer — I. ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ ̷ ̷ intransitive verb Etymology: water hammer of water : to strike with a hammering sound against the walls of a sealed containing vessel from which the air has been removed II. adjective Etymology: water hammer …   Useful english dictionary

  • water hammer — hidraulinis smūgis statusas T sritis fizika atitikmenys: angl. hydraulic impact; hydraulic shock; water hammer vok. hydraulischer Schlag, m; hydraulischer Stoss, m; Wasserschlag, m rus. гидравлический удар, m pranc. choc de bélier, m; choc… …   Fizikos terminų žodynas

  • water hammer — noun Date: circa 1890 a concussion or sound of concussion of moving water against the sides of a containing pipe or vessel (as a steam pipe) …   New Collegiate Dictionary

  • water hammer — the concussion and accompanying noise that result when a volume of water moving in a pipe suddenly stops or loses momentum. [1795 1805] * * * …   Universalium

  • water hammer — noun A surge of pressure in a pipe carrying a fluid; especially the banging sound in a steam or hot water pipe caused by bubbles of air, or by an abrupt alteration of the flow …   Wiktionary

  • water hammer — noun a knocking noise in a water pipe that occurs when a tap is turned off briskly …   English new terms dictionary

  • water hammer — wa′ter ham mer n. bui the concussion and accompanying noise that result when a volume of water moving in a pipe suddenly stops or loses momentum • Etymology: 1795–1805 …   From formal English to slang

  • water hammer — /ˈwɔtə hæmə/ (say wawtuh hamuh) noun the concussion which results when a moving volume of water in a pipe is suddenly arrested …   Australian English dictionary

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