What is the meaning of Seismograph?

(n.) An apparatus for registering the shocks and undulatory motions of earthquakes.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). seismograph. Retrieved September 24, 2026, from http://smartdefine.org/seismograph/definitions/2059830
ChicagoWebster's. 2011. "seismograph" http://smartdefine.org/seismograph/definitions/2059830 (accessed September 24, 2026).
HarvardWebster's 2011, seismograph, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/seismograph/definitions/2059830>.
MLAWebster's. "seismograph" 28 May 2011. Web. 24 September 2026. <http://smartdefine.org/seismograph/definitions/2059830>
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