adjective🔗ShareUltrasónico(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. "El silbato para perros emite un sonido ultrasónico que los humanos no pueden oír, pero los perros sí.soundphysicsfrequencytechnologyscienceelectronicsChat with AIVocabulary GamePractice Reading