[sahy-zuh m, -suh m]


an earthquake.

Origin of seism

1880–85; < Greek seismós, equivalent to seis-, stem of seíein to shake, quake + -mos noun suffix; cf. -ism Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for seism

tremor, quake

Examples from the Web for seism

Historical Examples of seism

British Dictionary definitions for seism



a less common name for earthquake

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