adjective🔗Shareअतिध्वनिक(acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher."The dog whistle emits an ultrasonic sound that humans can't hear, but dogs can. "कुत्ते की सीटी एक अतिध्वनिक ध्वनि उत्सर्जित करती है जिसे मनुष्य नहीं सुन सकते, लेकिन कुत्ते सुन सकते हैं।soundphysicsfrequencytechnologyscienceelectronicsChat with AIVocabulary GamePractice Reading