adjective🔗ShareУльтразвуковой(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. "Собачий свисток издает ультразвуковой звук, который люди не слышат, но собаки слышат.soundphysicsfrequencytechnologyscienceelectronicsChat with AIVocabulary GamePractice Reading
