Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun medicine The use of ultrasound as a diagnostic aid.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun 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

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

echo +‎ -graphy.

Examples

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