Etymology
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ultrasonography (n.)

1960, from ultrasonic + -graphy.

updated on June 03, 2017

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Definitions of ultrasonography from WordNet

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;
Synonyms: sonography / echography / ultrasound
From wordnet.princeton.edu, not affiliated with etymonline.