We found 21 dictionaries that define the word seismometer:

General (16 matching dictionaries)

1. seismometer: Merriam-Webster
2. seismometer: Oxford Learner's Dictionaries
3. seismometer: American Heritage Dictionary of the English Language
4. seismometer: Collins English Dictionary
5. seismometer: Wordnik
6. seismometer: Wiktionary
7. seismometer: Webster's New World College Dictionary, 4th Ed.
8. seismometer: Infoplease Dictionary
9. seismometer: Dictionary.com
10. Seismometer: Wikipedia, the Free Encyclopedia
11. Seismometer: Online Plain Text English Dictionary
12. seismometer: Webster's Revised Unabridged, 1913 Edition
13. Seismometer: AllWords.com Multi-Lingual Dictionary
14. seismometer: FreeDictionary.org
15. seismometer: The Phrontistery - A Dictionary of Obscure Words
16. seismometer: TheFreeDictionary.com

Computing (1 matching dictionary)

17. seismometer: Encyclopedia

Medicine (1 matching dictionary)

18. online medical dictionary (No longer online)

Science (2 matching dictionaries)

19. Earthquake Image Glossary (No longer online)
20. Tsunami Terminology (No longer online)

Tech (1 matching dictionary)

21. Schlumberger Oilfield Glossary (No longer online)

(Note: See seismometric as well.)

Definitions from Wiktionary (seismometer) ▸ noun:  (geology) A device used by seismologists to detect and measure seismic waves and therefore locate earthquakes etc; a seismograph. Similar: seismometre, seismograph, seismoscope, sismometer, seismometrograph, seismometry, microseismometer, sismograph, seismomicrophone, seismochronograph, more... Opposite: non-tremor sensor. Types: short-period, broad-band, velocity, acceleration, displacement, more... Adjectives: vertical, component, period, passive, first, horizontal, bottom, standard, electromagnetic, sensitive, single ▸ Words similar to seismometer ▸ Usage examples for seismometer ▸ Idioms related to seismometer ▸ Wikipedia articles (New!) ▸ Popular adjectives describing seismometer ▸ Words that often appear near seismometer ▸ Rhymes of seismometer ▸ Invented words related to seismometer