seismic

play
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 (as an explosion or the impact of a meteorite)

  2. 2 :  of or relating to a vibration on a celestial body (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.

Origin and Etymology of seismic

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


First Known Use: 1858



SEISMIC Defined for English Language Learners

seismic

play
adjective seis·mic \ˈsīz-mik, ˈsīs-\

Definition of seismic for English Language Learners

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

  • : very great or important


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very important or noticeable

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