Ultrasound

1 definition found

From WordNet (r) 2.0 [wn]:

  ultrasound
       n 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 [syn:
          {sonography}, {ultrasonography}]