We found 36 dictionaries that define the word ultrasonic:

General (23 matching dictionaries)

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

Computing (1 matching dictionary)

22. ultrasonic: Encyclopedia

Medicine (4 matching dictionaries)

23. ultrasonic: Merriam-Webster Medical Dictionary
24. Dorland's Illustrated Medical Dictionary (No longer online)
25. online medical dictionary (No longer online)
26. ultrasonic: Medical dictionary

Science (1 matching dictionary)

27. Ultrasonic: Eric Weisstein's World of Physics

Tech (7 matching dictionaries)

28. ultrasonic: Electronics
29. Ultrasonic: A to Z of Terms related to the Thermal Spray Process and Surface Engineering
30. Glossary of Meteorology (No longer online)
31. Glossary of video terms (No longer online)
32. ULTRASONIC: NOISE CONTROL TERMS
33. Rane Professional Audio Reference (No longer online)
34. Sweetwater Music (No longer online)

(Note: See ultrasonically as well.)

Definitions from Wiktionary ( ) ▸ adjective:  (acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher. Similar: supersonic, inaudible, unhearable, ultrasensual, ultracosmic, infravisible, subaudible, subauditory, subacoustic, subaural, more... Opposite: infrasonic, subsonic, audible Types: diagnostic, therapeutic, clean, cosmetic, more... Phrases: ultrasonic waves, ultrasonic wave, ultrasonic imaging, Ultrasonic testing, Ultrasonic cleaning, more... Adjectives: conventional, high, optical, acousto, low, mechanical, intravascular, percutaneous, magnetic, pulsed, typical Colors:     electric blue,     neon green,     ultraviolet,     cobalt blue,     cyan, more... ▸ Word origin ▸ Words similar to ultrasonic ▸ Usage examples for ultrasonic ▸ Idioms related to ultrasonic ▸ Wikipedia articles (New!) ▸ Popular nouns described by ultrasonic ▸ Words that often appear near ultrasonic ▸ Rhymes of ultrasonic ▸ Invented words related to ultrasonic