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ultrasonic (3 synonym found)
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Definition of ultrasonic:
(adj) :
beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher
Definition of ultrasonic:
(adj) :
beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher
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