We found 29 dictionaries that define the word seismic:

General (24 matching dictionaries)

1. seismic: Longman Dictionary of Contemporary English
2. seismic: Merriam-Webster
3. seismic: Oxford Learner's Dictionaries
4. seismic: American Heritage Dictionary of the English Language
5. seismic: Collins English Dictionary
6. seismic: Vocabulary.com
7. Seismic, seismic: Wordnik
8. seismic: Cambridge Advanced Learner's Dictionary
9. seismic: Wiktionary
10. seismic: Webster's New World College Dictionary, 4th Ed.
11. seismic: The Wordsmyth English Dictionary-Thesaurus
12. seismic: Infoplease Dictionary
13. seismic: Dictionary.com
14. seismic: Online Etymology Dictionary
15. seismic: Cambridge Essential American English Dictionary
16. Seismic: Wikipedia, the Free Encyclopedia
17. Seismic: Online Plain Text English Dictionary
18. seismic: Rhymezone
19. Seismic: AllWords.com Multi-Lingual Dictionary
20. seismic: FreeDictionary.org
21. seismic: Mnemonic Dictionary
22. seismic: TheFreeDictionary.com

Art (1 matching dictionary)

23. -seismic: A Cross Reference of Latin and Greek Elements

Business (1 matching dictionary)

24. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

25. seismic: Encyclopedia

Slang (1 matching dictionary)

26. seismic: Urban Dictionary

Tech (1 matching dictionary)

27. Schlumberger Oilfield Glossary (No longer online)

(Note: See seismically as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Related to, or caused by an earthquake or other vibration of the Earth. ▸ adjective:  (figuratively) Of very large or widespread effect. ▸ adjective:  (of a place) Subject to earthquakes Similar: seismal, unstable, vibroseismic, seismical, volcanoseismic, seismological, seismologic, seismotectonic, seismometric, seismoscopic, more... Opposite: aseismic Types: earthquake, seismic wave, seismograph, seismology, seismometer, seismic event, seismic activity, more... Phrases: seismic waves, seismic reflection, seismic design, seismic wave, Seismic refraction, more... Colors:     charcoal,     slate gray,     ash gray,     earth brown, more... ▸ Word origin ▸ Words similar to seismic ▸ Usage examples for seismic ▸ Idioms related to seismic ▸ Wikipedia articles (New!) ▸ Popular nouns described by seismic ▸ Words that often appear near seismic ▸ Rhymes of seismic ▸ Invented words related to seismic