Ultrasonic frequencies refer to sounds or waves that are too high-pitched for humans to hear. They vibrate very quickly and have a frequency above the range of our hearing abilities.
Full definition
Synonyms for individual words can be found below.
«ultrasonic»
«frequency»
Sentences with «ultrasonic frequencies»
- These humidifiers create a fine mist by exciting and evaporating water using a small diaphragm that vibrates at ultrasonic frequencies. (wetheparents.org)
- (The sounds should be inaudible to human ears though because they're sent using ultrasonic frequencies, according to the Financial Times.) (theverge.com)
- These pest control units broadcast variable ultrasonic frequencies from 22 KHz to 65 KHz to repel pests and keep them from adjusting to the uncomfortable noise. (geekwrapped.com)
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