ULTRASONIC


Meaning of ULTRASONIC in English

ul ‧ tra ‧ son ‧ ic /ˌʌltrəˈsɒnɪk◂ $ -ˈsɑː-/ BrE AmE adjective

ultrasonic sound waves are too high for humans to hear

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.