ultrasound
英 ['?ltr?sa?nd]
美['?ltr?sa?nd]
- n. 超聲；超音波
英英釋意
- 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