seismometer


seis·mom·e·ter

noun \sīz-ˈmä-mə-tər, sīs-\

Definition of SEISMOMETER

: a seismograph measuring the actual movements of the ground (as on the earth or the moon)
seis·mo·met·ric \ˌsīz-mə-ˈme-trik, ˌsīs-\ adjective

First Known Use of SEISMOMETER

1841

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