seismic shift meaning, seismic shift definition | English Cobuild dictionary

Collins

seismic

  

      adj  
1      (Also (less commonly))    seismical   relating to or caused by earthquakes or artificially produced earth tremors  
2    of enormous proportions or having highly significant consequences  
seismic social change     
  seismically      adv  


seismic array  
      n   a system of linked seismographs arranged in a regular geometric pattern to increase sensitivity to earthquake detection  
seismic wave  
      n   an earth vibration generated by an earthquake or explosion  
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