ultrasound

ultrasound
[[t]ʌ̱ltrəsaʊnd[/t]]
N-UNCOUNT: usu N n
Ultrasound is sound waves which travel at such a high frequency that they cannot be heard by humans. Ultrasound is used in medicine to get pictures of the inside of people's bodies.

I had an ultrasound scan to see how the pregnancy was progressing.


English dictionary. 2008.


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