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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