ultrasonic

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ultrasonic

 [ul″trah-son´ik]
beyond the audible range; relating to sound waves having a frequency of more than 20,000 Hz.

ul·tra·son·ic

(ŭl'tră-son'ik),
Relating to energy waves similar to those of sound but of higher frequencies (above 20,000 Hz).
[ultra- + L. sonus, sound]

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

(ŭl′trə-sŏn′ĭk)
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.

ul′tra·son′i·cal·ly adv.

ultrasonic

[ul′trəson′ik]
Etymology: L, ultra, beyond + sonus, sound
pertaining to ultrasound, or sound frequencies so high (greater than 20 kHz) that they cannot be perceived by the human ear.

ultrasonic

adjective Referring to an electromagnetic frequency faster than sound waves–eg, ≥ 30,000 Hz

ul·tra·son·ic

(ŭl'tră-son'ik)
Relating to energy waves similar to those of sound but of higher frequencies (above 30,000 Hz).
[ultra- + L. sonus, sound]

ultrasonic

Pertaining to sound waves above the upper limit of audibility, that is above about 20,000 Hz.

ultrasonic

high-frequency, inaudible sound energy waves (>30 000 Hz) above range of normal hearing

ul·tra·son·ic

(ŭl'tră-son'ik)
Relating to energy waves similar to those of sound but of higher frequencies (above 20,000 Hz).
[ultra- + L. sonus, sound]

ultrasonic (ul´trəson´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
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.
References in periodicals archive ?
Figure 10 shows the predicted gel fraction (a) and crosslink density (b) of the ultrasonically decrosslinked XHDPE as a function of the treatment time at various hydrostatic pressures of 0.
The molecular weight and its distribution of the virgin and ultrasonically treated IRs at 0, 5, 7.
This will allow the plate to be cleaned ultrasonically while the nozzles and manifold are inspected and cleaned by hand.
The process uses a polymer cap-and-cradle system in which the compressive load applied to each trace is precisely controlled ultrasonically to assure simultaneous, even distribution of energy.
The carbide/glass probe tip is ultrasonically actuated; measurement data are obtained by calculating the waveform changes that result from contact between the probe and the walls of the hole.
By utilizing receiver frequencies as high as 400 MHz and as low as 50 kHz, 32 gates per channel, and unlimited ultrasonic options, the unit is capable of resolving a wide variety of ultrasonically challenging applications.
WASHINGTON -- The ultrasonically activated scalpel offers distinct advantages over electrosurgical treatment for myomectomy, Dr.
The hand-held device measures ultrasonically at the push of a button.
The patch design employed in the study is a versatile, truly unique and transformative system that can enable the pain-free, needle-free, ultrasonically improved delivery of insulin and more than 175 other large molecule drugs.
Contract Awarded For : 100% Ultrasonically Tested Weldolet Size: 350 Nb X 100 Nb, Sch 40, As Per Sa234 Gr.
Spunbond Meltblown Spunbond (SMS) nonwoven fabric, which features 2 layers of wrap that are ultrasonically seamed along two sides.
Now manufacturers can rely on another Sonobond unit, the SureWeld 20 Ultrasonic PlungeBonder with custom tooling, to ultrasonically bond straps within the seam of the vest's outer shell.

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