• synonyms


[sahy-zuh m, -suh m]
See more synonyms for seism on Thesaurus.com
  1. an earthquake.
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Origin of seism

1880–85; < Greek seismós, equivalent to seis-, stem of seíein to shake, quake + -mos noun suffix; cf. -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for seism

tremor, quake

Examples from the Web for seism

Historical Examples of seism

  • The word seismoscope is a compound word from Greek consisting of the two words, seism and scope.

    The Wonder Book of Volcanoes and Earthquakes

    Edwin J. Houston

  • It means literally any instrument capable of seeing, or calling attention to, a seism, or earth-shake.

British Dictionary definitions for seism


  1. a less common name for earthquake
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Word Origin for seism

C19: from Greek seismos, from seiein to shake
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012