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microseismmore about microseism

microseism


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Microseism  \Mi"cro*seism\,  n.  [Micro-  +  Gr  ?  an  earthquake,  fr 
  ?  to  shake.] 
  A  feeble  earth  tremor  not  directly  perceptible,  but  detected 
  only  by  means  of  specially  constructed  apparatus.  -- 
  {Mi`cro*seis"mic},  {*seis"mic*al},  a. 
 
  From  WordNet  r  1.6  [wn]: 
 
  microseism 
  n  :  a  small  earthquake  [syn:  {tremor},  {earth  tremor}] 




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