ultrasound
	英 ['ʌltrəsaʊnd]
美['ʌltrəsaʊnd]
	    
    英英释意
	
	- 1. very high frequency sound; used in ultrasonography
 
- 2. 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