seismograph Hear it!

seismograph definition

seis·mo·graph (-graf′, -gräf′)

noun

an instrument that records the intensity and duration of earthquakes and similar tremors

Etymology: seismo- + -graph

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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