ul·tra·so·nog·ra·phy /-səˈnɑgrəfi, so-/
ul·tra·so·nog·ra·phy /-fɪ/ 名詞
ultrasonography
n : 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 [syn:
sonography, ultrasound]