column of water

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• Water barometer — Wa ter ba*rom e*ter (Physics) A barometer in which the changes of atmospheric pressure are indicated by the motion of a column of water instead of mercury. It requires a column of water about thirty three feet in height. [1913 Webster] …   The Collaborative International Dictionary of English

• column — [käl′əm] n. [ME & OFr colomne < L columna, collateral form of columen, column, pillar < IE base * kel , to project > HILL, HOLM1, Gr kolophōn] 1. a slender upright structure, generally consisting of a cylindrical shaft, a base, and a… …   English World dictionary

• Water column — A water column is a conceptual column of water from surface to bottom sediments. [ [http://waterontheweb.org/resources/glossary.html#W Water on the Web | Resources | Glossary ] ] This concept is used chiefly for environmental studies evaluating… …   Wikipedia

• Water pipe percolator — A water pipe percolator is a small additional sub chamber within the main chamber of a water pipe that provides in line smoke water interaction via heat exchange and dissolution.Function and PurposeA percolator works by utilizing a pressure… …   Wikipedia

• water column — noun 1. : water gage; also : the column of water in the gage 2. a. : a vertical pipe with valves and spout for delivering water to a locomotive tender b. : a device that is connected to the back boiler head of a locomotive and bears the …   Useful english dictionary

• column — noun Etymology: Middle English columne, from Anglo French columpne, from Latin columna, from columen top; akin to Latin collis hill more at hill Date: 15th century 1. a. a vertical arrangement of items printed or written on a page b. one of two… …   New Collegiate Dictionary

• water column — noun a) A notional column of water from the surface to the bottom in a natural setting, notable for the differences in physical and chemical properties at various depths. b) The zone in which ascent and descent occur …   Wiktionary

• water level — noun Date: 1563 1. an instrument to show the level by means of the surface of water in a trough or in a U shaped tube 2. the surface of still water: as a. the level assumed by the surface of a particular body or column of water b. the waterline… …   New Collegiate Dictionary

• water bellows — noun plural : trompe * * * water bellows plural noun or singular noun A form of blower worked eg by a column of water falling through a vertical tube, formerly used to supply a blast for furnaces • • • Main Entry: ↑water …   Useful english dictionary

• water manometer — a manometer that uses changes of height of a column of water to measure pressure …   Medical dictionary

• Column-based nucleic acid purification — is a solid phase extraction method to quickly purify nucleic acids. This method relies on the fact that the nucleic acid may bind (adsorption) to the solid phase (silica or other) depending on the pH and the salt content of the buffer, which may… …   Wikipedia