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Irrigation Dictionary : Table of Contents (members login required)\t
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Term No.Term NameTerm Description
1275Vernal autumnal pondsPonds that have water in the spring, dry up in the summer and then contain water again in the fall......
1274Vernal pondA pond that contains water only in the spring......
6957VertebrateAnimals that have backbones or vertebral columns......
8669Vertex, or Extreme point A corner. A point in the convex set that does not lie on a segment joining two points of the set......
1214VerticalImaginary vertical line at any point in a stream or other body of water extending from the bottom up to the surface......
2705Vertical concrete spiral cased settingA turbine setting when the turbine is installed in the vertical position and the water is guided by a spiral casing (illustrated)......
8932Vertical control, or Level controlA series of bench marks or other points of known elevation, established throughout an area......
2585Vertical creep1 - A creep in a vertical direction. 2 - The distance measured along the vertical creep. 3 - According to `Lane`, the creep along a slope of 45o or gr.....
5221Vertical drainage, or Inverted wellDisposal of drainage water through wells into a porous layer of earth or an open-rock formation......
2302Vertical drop weir, or Overfall weirA weir when the flowing water nappe separates from the weir body at the crest......
3529Vertical drop, Vertical fall, Vertical drop structure, or Vertical fall structureA drop in which the nappe impinges clear into the water cushion (stilling pool) below. There is no glacis or hydraulic jump, and the dissipation of en.....
2913Vertical lift gateA general term used to designate all rectangular gates operating vertically in grooves in their own plane......
3674Vertical orificeAn orifice lying in a vertical plane......
8946Vertical photographPhotograph taken with a single-lens camera with the axis vertical or as nearly vertical as is possible in an aeroplane......
4514Vertical pumpA centrifugal pump with the shaft vertical, to the bottom of which an impeller is attached in a horizontal plane. If the impeller is submerged, it is .....
4528Vertical screw pumpA pump similar in shape and characteristics to a horizontal screw pump, but which has the axis of its runner in a vertical position......
5929Vertical shore, or Dead shoreShore used vertically to prop up temporarily any part of a structure......
5400Vertical subsurface drainage systemSystem of drainage wells designed to control the groundwater table, also called tube wells......
6541Vertical terrace intervalThe difference in elevation of a point on one terrace to a corresponding point on the next......
1218Vertical velocity curveA curve showing the relation between the depth and velocity along a vertical line at a given section of an open channel or conduit......
3089Vertical velocity distributionA graph of the relation between depth and velocity along a vertical line in a stream, as determined by a set of observations......
3006Very sinuous canalsCanals having a condition in alignment which is typical of canals in foothills or mountainous topography......
8393VGAVideo Graphics Adapter, the interface from your video card or integrated video connector and the system display monitor. .....
5582Vibrated concreteConcrete compacted by vibration from an internal or external vibrator......
6151Vibrating rollerA self-propelled or towed roller with a mechanically vibrated roll......
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