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Meaning of “ultrasound” - Learner’s Dictionary

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 from the Cambridge Learner’s Dictionary © Cambridge University Press)
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