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Ultrasonic

//ʌltɹəˈsɒnɪk// adj

Definitions

Adjective
  1. 1
    Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher.

    "The wheel shop also has equipment for ultrasonic testing of axles for flaws; and systematic checking of locomotive axles and crank pins is carried out as they pass through the shops."

Adjective
  1. 1
    having frequencies above those of audible sound wordnet

Etymology

From ultra- + sonic.

See also for "ultrasonic"

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