microseism


mi·cro·seism

noun \ˈmī-krə-ˌsī-zəm\

Definition of MICROSEISM

:  a feeble rhythmically and persistently recurring earth tremor
mi·cro·seis·mic \ˌmī-krə-ˈsīz-mik, -ˈsīs-\ adjective
mi·cro·seis·mic·i·ty \-sīz-ˈmi-sə-tē, -sīs-\ noun

Origin of MICROSEISM

International Scientific Vocabulary micr- + Greek seismos earthquake — more at seismic
First Known Use: 1887

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