What is "ultrasonography"

1960, from ultra- + sonography (see sonogram).

n. 1 (context medicine English) The use of ultrasound to produce diagnostic images of the internal organs of the body, or of a foetus. 2 The use of ultrasound to form images of underwater structures.

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]