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Meaning of seismometer

seis•mom•e•ter

Pronunciation: (sīz-mom'i-tur, sīs-), [key]
— n.
  1. a seismograph equipped for measuring the direction, intensity, and duration of earthquakes by measuring the actual movement of the ground.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.