A sensitive instrument that can detect, amplify, and record ground vibrations too small to be perceived by human beings. (See also accelerograph.)
Found on http://www.encyclo.co.uk/local/20129
- a measuring instrument for detecting and measuring the intensity and direction and duration of of movements of the ground (as an earthquake)
Found on http://www.webdictionary.co.uk/definition.php?query=seismograph
a device that detects vibrations in the earth. It is used in studying the earth's interior and in prospecting for probably oil-bearing structures. Vibrations are created by discharging explosive in shallow boreholes, by striking the surface with a heavy blow, or by vibrating a heavy plate in contact with the ground. The type and velocity of the
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An instrument for detecting and recording the intensity, direction, and duration of a movement of the ground caused by an earthquake or explosion. See also: Mercalli Scale, Richter Scale, Seismic.
Found on http://www.diracdelta.co.uk/science/source/s/e/seismograph/source.html
an instrument that records the frequency and magnitude of seismic waves. The vibrations are recorded by a pen on a revolving drum. A seismography can pick up seismic activity thousands of kilometres away.
Found on http://www.encyclo.co.uk/local/20796
[ Greek ......... an earthquake + -graph
An apparatus for registering the shocks and undulatory motions of earthquakes.
Found on http://www.encyclo.co.uk/webster/S/55
<physics> An apparatus for registering the shocks and undulatory motions of earthquakes. ... Origin: Gr. An earthquake + -graph. ... Source: Websters Dictionary ... (01 Mar 1998) ...
Found on http://www.mondofacto.com/facts/dictionary?seismograph
a measuring instrument for detecting and measuring the intensity and direction and duration of movements of the ground (as an earthquake)
Found on http://wordnetweb.princeton.edu/perl/webwn?s=seismograph
• (n.) An apparatus for registering the shocks and undulatory motions of earthquakes.
Found on http://thinkexist.com/dictionary/meaning/seismograph/
instrument that makes a record of seismic waves caused by an earthquake, explosion, or other Earth-shaking phenomenon. Seismographs are equipped with ... [5 related articles]
Found on http://www.britannica.com/eb/a-z/s/59
seismograph, seismographic 1. An instrument for recording vibrations of the Earth, particularly of earthquakes or artificially induced energy for the exploration of underlying rock formations and the interior of the Earth. 2. Any of various devices for measuring and recording the vibrations and intensities of earthquakes. 3. An instrument for reco
Found on http://www.wordinfo.info/words/index/info/view_unit/2656/3
Instrument that measures the energy contained in seismic waves from an earthquake or other type of ground displacement.
Found on http://www.physicalgeography.net/physgeoglos/s.html
An instrument used to record seismic waves caused by earthquakes, nuclear explosions, etc.: the record it produces is a seismogram. The simplest seismograph has a horizontal bar, pivoted at one end and with a recording pen at the other. The bar, supported by a spring, bears a heavy weight. As the gr...
Found on http://www.daviddarling.info/encyclopedia/S/seismograph.html
A very sensitive instrument used to record and measure earthquakes. During an earthquake, vibrations initiated by fracturing of the earth's crust radiate outward from the point of fracture and are detected by seismographs. The visual record produced is called a "seismogram".
Found on http://earthquakescanada.nrcan.gc.ca/info-gen/glossa-eng.php
An instrument that records seismic waves; that is, vibrations of the earth.
Found on http://volcano.oregonstate.edu/education/glossary.html
A machine for measuring the intensity of earthquakes by recording the seismic waves that they generate.
Found on http://www.inlandlapidary.com/user_area/glossaryS.asp
An instrument that detects, magnifies, and records vibrations of the Earth, especially earthquakes.
Found on http://www.ge-at.iastate.edu/glossary-of-geologic-terms/
An instrument that records seismic waves; that is, vibrations of the earth. Used to record and measure earthquakes.
Found on http://jersey.uoregon.edu/~mstrick/geology/geo_glossary_page.html
instrument for recording earthquakes
Found on http://phrontistery.info/s.html
No exact match found