seismic

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adjective seis·mic \ˈsīz-mik, ˈsīs-\

Definition of seismic

  1. 1 :  of, subject to, or caused by an earthquake; also :  of or relating to an earth vibration caused by something else (such as an explosion or the impact of a meteorite)

  2. 2 :  of or relating to a vibration on a celestial body (such as the moon) comparable to a seismic event on earth

  3. 3 :  having a strong or widespread impact :  earthshaking seismic social changes

seismically

play \-mi-k(ə-)lē\ adverb

Examples of seismic in a Sentence

  1. Seismic social changes have occurred.

Recent Examples of seismic from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'seismic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of seismic

Greek seismos shock, earthquake, from seiein to shake; probably akin to Avestan thwaēshō fear




SEISMIC Defined for English Language Learners

seismic

play
adjective

Definition of seismic for English Language Learners

  • : of, relating to, or caused by an earthquake

  • : very great or important


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