ultrasonic /ul·tra·son·ic/ (-son´ik) beyond the upper limit of perception by the human ear; relating to sound waves having a frequency of more than 20,000 Hz.
ultrasonic
ultrasonic [ul″trah-son´ik]
ultrasonic (ul´tr
son´ik),
ultrasonic
ul·tra·son·ic ( l tr -s n  k)adj. 1. Of or relating to acoustic frequencies above the range audible to the human ear, or above approximately 20,000 hertz. 2. Of, relating to, or involving ultrasound. |
ultrasonic
[ul′trəson′ik]
Etymology: L, ultra, beyond + sonus, sound
pertaining to ultrasound, or sound frequencies so high (greater than 20 kilohertz) that they cannot be perceived by the human ear.
ultrasonic [ul″trah-son´ik]
beyond the audible range; relating to sound waves having a frequency of more than 20,000 Hz.
ultrasonic (ul´tr
son´ik),adj pertaining to sound frequencies so high (greater than 20 kHz) they cannot be perceived by the human ear.
ultrasonic cleaner,
n an electronic generator that transmits high-energy and high-frequency vibrations to a fluid-filled container used to remove particulate matter from dental instruments and appliances.
ultrasonic
beyond the audible range; relating to sound waves having a frequency of more than 20,000 cycles per second.
ultrasonic cleaning
surgical instruments can be thoroughly cleaned by the use of ultrasonic waves which cause the formation of minute gas bubbles which, when they collapse, form shock waves.
ultrasonic heating
the use of ultrasound for producing localized hyperthermia.
ultrasonic pregnancy diagnosis
see ultrasonography.
ultrasonic probe
used to disintegrate masses internally, e.g. the optic lens.
ultrasonic tooth scaling
the use of vibrations to remove supragingival calculus. See ultrasonic scaler.
ultrasonic
adjective Referring to an electromagnetic frequency faster than sound waves–eg, ≥ 30,000 Hz
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