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English definition of “ultrasound”

ultrasound

noun     /ˈʌltrəsaʊnd/
SOUND WAVES [U] very high sound waves , especially those that are used in medical examinations to produce an image of something inside your body : an ultrasound scan Medical and surgical equipment
MEDICAL EXAMINATION [C] a medical examination that produces an image of something that is inside the body , especially a baby , using sound waves : An ultrasound revealed a perfectly healthy baby .Medical and surgical equipment
(Definition of ultrasound noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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