Ultrasonic meaning

ŭltrə-sŏnĭk
The definition of ultrasonic, also known as ultrasound, is sound waves that have a higher frequency than the human ear can hear.

An example of ultrasonic is an ultrasound image of an unborn baby.

An example of ultrasonic is a dog whistle that cannot be heard by humans,

An example of ultrasonic is the detection of ships and objects underwater by bouncing a high frequency sound wave off their hulls, a process discovered by Paul Langevin, a Frenchman.

noun
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Ultrasonic refers to sound that is beyond the audible hearing range; typically above 20 kHz (20,000 Hz). In medicine, ultrasound machines emit ultrasonic waves that echo back an image of a fetus or internal organ. They are also used to administer therapy to various parts of the body. Contrast with infrasonic. See ultrasonic welding and saser.
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(acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher.
adjective
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Of or relating to acoustic frequencies above the range audible to the human ear, or above approximately 20,000 hertz.
adjective
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Of, relating to, or involving ultrasound.
adjective
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Relating to acoustic frequencies above the range audible to the human ear, or above approximately 20,000 hertz.
adjective
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Relating to or involving ultrasound.
adjective
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Designating or of a frequency of mechanical vibrations above the range audible to the human ear, i.e., above 20,000 vibrations per second.
adjective
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Origin of ultrasonic

  • ultra- +"Ž sonic

    From Wiktionary