a. Groundwater in a crevice or fissure in dense rock. AGI
b. A term popularly applied to any body of groundwater, in part because
dowsers commonly describe water as occurring in veins. The term is little
used among hydrologists. AGI
The use of water to remove the soluble constituents of a mill product
before further treatment. See also:wash water
a. A groove or slot incised in the surface of a bit or other piece of
drill-string equipment to provide a channel through which the circulated
drilling fluid can flow. Also called watercourse; water groove; water
passage; water slot. Long
b. A way or channel, either natural (as a river) or artificial (as a
canal), for conducting the flow of water. AGI
c. A navigable body or stretch of water available for passage; a
watercourse. AGI
A wheel so arranged with floats, buckets, etc., that it may be turned by
flowing water; used to drive machinery, raise water, etc. The overshot and
undershot water wheel, the breast wheel, and the tub wheel are now largely
discarded in favor of the turbine. Standard, 2
A device for determining the presence of water, usually electrically.
CF:divining rod
See:dowsing
Gem minerals, esp. crystals, rounded by action of water rolling them
against rocks or gravels in beds of rivers, lakes, or the ocean.
Extra payment to miners who work in a wet place, either by the yard of
progress or the ton of coal mined. Fay
The absolute meter-kilogram-second (mks) unit of power that equals 1
absolute joule per second; the standard in the United States; equals 1/746
hp. Abbrev., w and W. Webster 3rd; Zimmerman
An orthorhombic or monoclinic mineral, Na2 Ca(SO4 )2
.4H2 O(?) ; forms hairlike crystals. Also spelled wattevilleite.
A unit of measurement of electrical work that equals 1 W expended for 1 h.
Abbrev., whr and wh. Crispin; Zimmerman
An alternative name for the reactive component of an alternating current.
CTD
An instrument for measuring electric power in watts, the unit of
electrical energy, volt times amperes; therefore, combining the functions
of a volmeter and an ammeter. Abbrev., wm. Crispin; Zimmerman
A unit of measurement of electrical work that equals the rate of 1 W
expended for 1 s. Abbrev., wsec. Crispin
See:rock drill
See:diffraction
In seismology, the surface of equal time elapse from the source point to
the position of the resulting outgoing signal at any given time after the
source charge has been activated. In a more restricted sense, the surface
along which phase is constant at a given instant. AGI
In seismology, a diagram of a series of lines showing equal times from the
point of detonation. In its construction, velocity information must be
known or assumed. Charts are usually constructed so that the horizontal
and vertical scales are in length, but they can be constructed so that the
horizontal scale is in length and the vertical scale is in time.
AGI
The phenomenon that results when waves of the same or nearly the same
frequency are superposed, characterized by a spatial or temporal
distribution of amplitude of some specified characteristic differing from
that of the individual superposed waves. Hy
a. The linear distance between successive wave crests or other equivalent
points in a waveform or harmonic series. It is equal to the velocity
divided by the frequency--measured in cycles per second--and may be
represented by the wave number in reciprocal units, e.g., cm--1 .
b. In symmetrical, periodic tectonic fold systems, the distance between
adjacent antiformal or synformal axial planes. For asymmetrical and
nonperiodic systems, various definitions have been proposed.
An orthorhombic mineral, Al3 (PO4 )2 (OH,F)3
.5H2 O ; pearly; forms hemispherical radiating aggregates in
low-grade aluminous phosphatic rocks; also occurs in veins; a source of
phosphorus.