1
[ adjective ] having frequencies above those of audible sound

Synonyms

supersonic

Used in print

(Walter H. Buchsbaum, "Advances in Medical Electronics"...)

Recently many doctors have installed ultrasonic vibration machines for deep massage of bruises , contusions , and simple bursitis .

Sonar can be used to measure the thickness of the heart by placing small crystal transducers at opposite sides of the heart or blood_vessel and exciting one with some pulsed ultrasonic energy .

The Doppler_effect , using ultrasonic signals , can be employed to measure the flow of blood without cutting into the blood_vessel .

It uses both an ultrasonic dimensioning arrangement of the heart and a catheter carrying a thermistor inserted into the bloodstream .

This pressure measurement may be made at_the_same_time that the ultrasonic dimensioning measurement is made .

Related terms

inaudible

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