English dictionary



Hint: With the Firefox addon you can search this dictionary from the browsers search field.

English adjective: ultrasonic

1. ultrasonic having frequencies above those of audible sound


Synonymssupersonic


Similarinaudible, unhearable


Antonymsaudible, hearable









Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
2026 onlineordbog.dk