Ultrasonic Definition

ŭltrə-sŏnĭk
adjective
Designating or of a frequency of mechanical vibrations above the range audible to the human ear, i.e., above 20,000 vibrations per second.
Webster's New World
Of, relating to, or involving ultrasound.
American Heritage
Synonyms:
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noun
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.
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Origin of Ultrasonic

  • ultra- +"Ž sonic

    From Wiktionary

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