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Longman Dictionary of Contemporary English
▪ An ultrasound scan was done, as already described to assess stone status and gall bladder emptying.
▪ Barium follow-through, gastroscopy, sigmoidoscopy, barium enema, abdominal ultrasound scan, and chest radiograph were all normal.
▪ All patients had standard haematological and biochemical tests, and an upper abdominal ultrasound scan.
▪ An ultrasound scan revealed non-dilated ducts and suggested acute cholecystitis.
▪ A large proportion of the ultrasound assessments named an anomaly detected.
▪ Barium follow-through, gastroscopy, sigmoidoscopy, barium enema, abdominal ultrasound scan, and chest radiograph were all normal.
▪ Furthermore, ultrasound scanning detects other physical anomalies, of which some are associated with genetic abnormality.
▪ He's using ultrasound scanning to discover if ewes are pregnant.
▪ I found it helpful to read the chapters on power ultrasound, commercially available equipment and scale - up considerations together.
▪ The contrast agents in dispute would be used in ultrasound imaging of the heart and other organs.
▪ The remaining six patients are free of symptoms, but have not attended for ultrasound examination.
Douglas Harper's Etymology Dictionary

1911, from ultra- + sound (n.1). Compare ultrasonic. In reference to ultrasonic techniques of detection or diagnosis it is recorded from 1958.


n. 1 (context physics English) sound with a frequency greater than the upper limit of human hearing; approximately 20 kilohertz 2 (context medicine English) The use of ultrasonic waves for diagnostic or therapeutic purposes

  1. n. very high frequency sound; used in ultrasonography

  2. 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 [syn: sonography, ultrasonography]


Ultrasounds are sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is no different from 'normal' (audible) sound in its physical properties, except in that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy, young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz.

Ultrasound is used in many different fields. Ultrasonic devices are used to detect objects and measure distances. Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning, mixing, and to accelerate chemical processes. Animals such as bats and porpoises use ultrasound for locating prey and obstacles. Scientist are also studying ultrasound using graphene diaphragms as a method of communication.

Ultrasound (band)

Ultrasound are an English indie band, predominantly active during the late 1990s. Although the band's focal point (in particular for reviewers) was their tall, obese singer/guitarist Andrew "Tiny" Wood, the main songwriter was guitarist Richard Green, with the line-up completed by drummer Andy Peace, keyboardist Matt Jones and bass player/second singer Vanessa Best.

Having split up acrimoniously in 1999, the band reunited in early 2010 with their first concert in eleven years scheduled for a benefit event in September of that year.

Ultrasound (disambiguation)

Ultrasound is sound with a frequency greater than the upper limit of human hearing (greater than 20 kHz).

Ultrasonic is an adjective referring to ultrasound.

Ultrasound and ultrasonic may also refer to:

  • Medical ultrasonography, an ultrasound-based diagnostic imaging technique
  • Ultrasound (band), a rock band
  • Gravis Ultrasound, a sound card for the PC
  • Ultrasonic (film), an American independent film
  • Ultrasonic sensors and transducers which use ultrasound to measure distance and velocity
  • Ultrasonic testing, a technique of non-destructive testing
  • Ultrasonic cleaning
  • Ultrasonic welding
  • Ultrasonic motors, a type of motor that utilizes ultrasonic vibrations

Usage examples of "ultrasound".

Fourteen weeks later, ultrasound revealed a fetal skeleton, normal in all ways for that stage of development, a week later, amniocentesis confirmed the fetus was male.

Against the left wall of the rectangular room were arranged the elements of a communal kitchen: a six-burner stove, two food slots, three large refrigerators, shelves stocked with goods in boxes and cans and tableware, an ultrasound dishwasher, and assorted gadgets at whose purpose Kirk could only guess.

They were doing everything together this time, from having ultrasounds, to keeping temperature charts, doing ovulation tests, producing sperm or injecting it.

Naomi, anesthetized, had been oblivious to what was going on around her, and Lisa had quickly forgotten about him as she concentrated on the ultrasound images that guided her in aspirating the eggs from Naomi's follicles into test tubes.

No pitons full of microchips, which could have performed ultrasound tomography of the cliff face and computed their own load-bearing capacity.

She tied the compression bandage around the wound, then held the ultrasound injector against my forearm.

For most of us, it was a world without air bags or mandatory seat belts, before the decrease in smoking, before early detection of cancer, before CAT scan, ultrasound, organ transplant, amniocentesis, and coronary bypass surgery, before 911 systems showed police and paramedics your address.

As the Coonies all needed access to the park for their toilet, maintenance had equipped them with ultrasound collars.

Long before he began excavating diamonds with ultrasound, how many men had died who stood in his way to becoming rich and powerful?

Being ultrasound at extremely high frequency, it is highly directional.

Imagine, first, a horseshoe bat giving out a continuous hum of ultrasound as it flies fast towards a still object, like a tree.

They also didn't know what a radio was, or an airport, or a movie, or a television, or a computer, or a cell phone, or a jet, an antibiotic, a rocket, a satellite, an MRI, ICU, IUD, ICBM, EEG, EPA, IRS, DOD, PCP, HTML, internet, interferon, instant replay, remote sensing, remote control, speed dialing, gene therapy, gene splicing, genes, spot welding, heat-seeking, bipolar, prozac, leotards, lap dancing, email, tape recorder, CDs, airbags, plastic explosive, plastic, robots, cars, liposuction, transduction, superconduction, dish antennas, tupperware, sneakers, step aerobics, smoothies, twelve-step, ultrasound, nylon, rayon, teflon, fiber optics, fuel cell, fuel injection, carpal tunnel, laser surgery, laparoscopy, corneal transplant, kidney transplant, AIDS&None of these things would have meant anything to a person in the year 1900.

Others have part-time jobs as massage therapist, physical trainer, CD-ROM writer, ultrasound technician, astrologer, secretaries, traditional waiters, and one “.

I perform a brief preliminary examination, studying both the macroscopic and microscopic effects, creating an active first-approximation stress-point map, producing a similar map of molecular energy levels within both the ceramic and the induced crystallization planes, calculating energy-transfer profiles between each of the ultrasound frequencies and the crystallization planes, and extrapolating possible new resonance frequencies based on this analysis.

If he'd understood the ambassador correctly, randomized waves of ultrasound were traveling through the fluid to thwart any possible spy devices at customs, and a clever little computer program built into his cocoon made him look like a mailbag to any prying muon probes.