Search Result for "ultrasound": 
Wordnet 3.0

NOUN (2)

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, echography, ultrasound]



WordNet (r) 3.0 (2006):

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, echography, ultrasound]