Definitions for ultrasoundˈʌl trəˌsaʊnd

This page provides all possible meanings and translations of the word ultrasound

Random House Webster's College Dictionary

ul•tra•soundˈʌl trəˌsaʊnd(n.)

  1. sound with a frequency greater than 20,000 Hz, approximately the upper limit of human hearing.

    Category: Physics

  2. Med. the application of ultrasonic waves to therapy or diagnostics, as in deep-heat treatment of a joint or in ultrasonography.

    Category: Medicine

Origin of ultrasound:


Princeton's WordNet

  1. ultrasound(noun)

    very high frequency sound; used in ultrasonography

  2. sonography, ultrasonography, echography, ultrasound(noun)

    using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs

Kernerman English Learner's Dictionary

  1. ultrasound(noun)ˈʌl trəˌsaʊnd

    the technology of using sound waves to produce a picture of the inside of sb's body

    Ultrasound scans are used to look at unborn babies.


  1. ultrasound(Noun)

    sound with a frequency greater than the upper limit of human hearing; approximately 20 kilohertz

  2. ultrasound(Noun)

    The use of ultrasonic waves for diagnostic or therapeutic purposes


  1. Ultrasound

    Ultrasound is an oscillating sound pressure wave with a frequency greater than the upper limit of the human hearing range. Ultrasound is thus not separated from 'normal' sound based on differences in physical properties, only the fact that humans cannot hear it. Although this limit varies from person to person, it is approximately 20 kilohertz in healthy, young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz. Ultrasound is used in many different fields. Ultrasonic devices are used to detect objects and measure distances. Ultrasonic imaging is used in both veterinary medicine and human medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning and for mixing, and to accelerate chemical processes. Organisms such as bats and porpoises use ultrasound for locating prey and obstacles. Ultrasonics is the application of ultrasound. Ultrasound can be used for medical imaging, detection, measurement and cleaning. At higher power levels, ultrasonics is useful for changing the chemical properties of substances.

Anagrams of ultrasound

  1. undulators

Translations for ultrasound

Kernerman English Multilingual Dictionary


ultrasonic sound, used especially in scanners, that can show what is inside a person's body.

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