[mi.cro.seism] n [ISV micr- + Gk seismos earthquake--more at seismic] (1887): a feeble rhythmically and persistently recurring earth tremor -- mi.cro.seis.mic adj -- mi.cro.seis.mic.i.ty n
MICROSEISM
Meaning of MICROSEISM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012