You searched for: “seismometer”
seismometer, seismometry
1. A tool for measuring earthquakes and attendant phenomena; such as, earth tremors or ground movement.
2. A special seismograph equipped to measure the actual movement of the ground.

See seismograph in this listing for more details.

This entry is located in the following units: meter-, metro-, metr-, -metrical, -metrically, -metron, -metric, -metrist, -meter, -meters, -metry, -metre (page 36) seismo-, seism-, -seism, -seisms, -seisma, -seismically, -seismical, -seismal, -seismic (page 4)