- ultrasonic waves, used in medical and dental diagnosis and therapy, in cleaning and detecting flaws in metal, etc.
- the use of ultrasonic waves in ultrasonography to form images of interior body organs, as the uterus or heart
See ultrasound in American Heritage Dictionary 4
- Ultrasonic sound.
- Medicine The use of ultrasonic waves for diagnostic or therapeutic purposes, specifically to image an internal body structure, monitor a developing fetus, or generate localized deep heat to the tissues.
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