| Term No. | Term Name | Term Description |
| 4406 | Wadder | The wrapping of rope round the collar of the rope spear, or screwing an iron disk on the spear collar in order to cause the rope to pack in the bore h..... |
| 723 | Wadi | 1 – A gully or valley, dry except in the rainy season. 2 – Sometimes also a stream running through such a valley...... |
| 6153 | Wagon | A trailer with a dump body...... |
| 5971 | Wagon drill, Wagon drilling | A drifter mounted on a mast, supported by two or more wheels...... |
| 8322 | Wait state | An internal condition of delay in processing time executed by the CPU when a synchronizing control signal is not present. Wait states synchronize the ..... |
| 3031 | Wake | System of eddies formed at the point of separation in flow past a solid body when motion in the boundary layer becomes turbulent...... |
| 5844 | Wale | Beam, either horizontal or vertical, put in contact with sheeting or other beams to hold them in place...... |
| 5915 | Wales, Walers, Rangers, or Waling timbers | The horizontal timbers placed on the face of the plank supporting the walls of an excavation in order to hold them together, and kept in place by stru..... |
| 5943 | Walings | Rigid beams, usually horizontal, used to keep the forms in line, to support the stand, and to avoid necessity of tying every stud. They are bolted thr..... |
| 4369 | Walking beam | A heavy hinged arm with a sheave at one end through which the drilling line passes; it provides for the raising and dropping of the tools in percussio..... |
| 5896 | Walking-type double-tier formwork | Formwork consisting of two identical panels connected by a bar hinged to the centres of the panels. The vertical shifting of the panels is achieved by..... |
| 2446 | Walkway | A passageway for pedestrians...... |
| 3064 | Wall | The bounding or inside surface of a conduit, manmade or natural, conveying liquid...... |
| 2649 | Wall friction | Frictional resistance mobilized between a wall and the soil in contact with the wall...... |
| 5932 | Wall plate | The vertical member in a system of raking shores, held against the wall by hooks driven into the mortar joints, and providing support for the heads of..... |
| 3649 | Wall ports | Openings in the side walls for water conveyance in or out of the chamber through the wall culverts...... |
| 1931 | Wall pressure | Wall pressure is equal to and synonymous with turgor pressure for an isolated cell under equilibrium conditions...... |
| 6754 | Wallace’s Line | An imaginary line, passing east of the Philippines, and separating the Orient from Australia...... |
| 8734 | Walnut Powder | The powder of the shell of walnut, having a specific gravity of the order of 1.3, that is used to reproduce morphological changes in mobile bed of ph..... |
| 2906 | Walton`s rising sill gate | A tilting gate hinged at the base with an additional hinged flap at the downstream end. It is used to admit water into canals when silt is present, it..... |
| 8323 | WAN | Wide Area Network, a network that typically spans nationwide distances and usually utilizes public telephone networks...... |
| 8324 | Warm start | Restarting a program that has stopped, but without losing any data...... |
| 6964 | Warm‑water fishery | Water that has an environment suitable for species of fish other than salmonids. ..... |
| 1438 | Warp | 1 - Bend in a river imposed by external restraint. 2 - Sediment deposited by water, or when alluvial soil is formed; also, a bed or layer of such sedi..... |
| 3396 | Warp | 1 - A gradual and uniform flaring out between two different side slopes. 2 - See 1438 and 5744...... |
