Definition of ultrasound in English:



mass noun
  • 1Sound or other vibrations having an ultrasonic frequency, particularly as used in medical imaging.

    as modifier ‘an ultrasound scanner’
    • ‘The researchers found that mist emission decreased with increasing ultrasound power.’
    • ‘Because it uses sound waves instead of radiation, ultrasound is safer than X-rays.’
    • ‘It has a video camera eye, and several ultrasound sensors which emit pulses of sound and can measure the distance from an object by the echo.’
    • ‘The appendix can also be directly imaged under ultrasound using a linear transducer.’
    • ‘In these cases it sometimes helps to subject the fracture site to pulsed electromagnetic fields or to ultrasound.’
    • ‘Hifu treatment uses a beam of high intensity ultrasound focused on the cancer.’
    • ‘A smaller, portable machine called a Doppler uses ultrasound for intermittent monitoring.’
    • ‘See here for some stuff on ultrasound weaponry, if you are interested.’
    • ‘The use of ultrasound and magnetic resonance since 1945 has also made it easier to diagnose disease.’
    • ‘Under each ultrasound condition, viability of cells was also assessed using trypan blue.’
    • ‘Phacoemulsification is the procedure in which the lens is dissolved using sound energy or ultrasound.’
    • ‘Conveniently, ultrasound also has a shorter range than audible sound.’
    • ‘Echocardiography is the study of the heart using high frequency sound waves or ultrasound.’
    • ‘Even at low levels ultrasound can cause jarring vibrations and a rise in temperature.’
    • ‘This moth, upon hearing a bat, emits ultrasound pulses at its wing beat rate to identify it to the bat.’
    • ‘Lasers, ultrasound and freezing can also be used to take out tonsils.’
    • ‘Similar setups are used on a much larger scale for ultrasound cleaning in industry.’
    • ‘This is measured by means of ultrasound and electro-magnetic mechanisms.’
    • ‘I believe this technology is based on ultrasound, not magnetism.’
    • ‘The big brother of ultrasound, infrasound means frequencies too low to be heard by the human ear.’
    1. 1.1count noun An ultrasound scan, especially one of a pregnant woman to examine the fetus.
      ‘I have to take my daughter-in-law for her ultrasound’
      • ‘Such is the demand in the United States, technician operated 4D ultrasounds are readily available in scanning booths in shopping malls, enabling parents to purchase a video of their moving fetus.’
      • ‘Hundreds of images are taken during the MRI exam, analyzed by computer and physician, then compared to the patient's mammograms and ultrasounds.’
      • ‘Of the women whose ultrasounds showed abnormal lymph nodes, 92.8% had cancerous nodes at surgery.’
      • ‘The doctor took one look at her, admitted her into the hospital, did tests, CAT scans, MRI's, ultrasounds, and a biopsy.’
      • ‘According to the Fraser Institute, between 2000-03, delays for CT and MRI scans and ultrasounds jumped.’
      • ‘‘They have to have hormonal injections, come for ultrasounds, scans, blood tests - and honestly I can't see anybody doing it for free,’ says Tan.’
      • ‘These tests may include blood tests, urinalysis and imaging studies, such as ultrasounds or angiography.’
      • ‘Returning to the office, he was pleased to find copies of both obstetric ultrasounds awaiting him, each with evidence of a viable intrauterine pregnancy.’
      • ‘Does she get yearly ultrasounds and blood tests to screen for ovarian cancer?’
      • ‘It's present at birth, and the cysts are usually visible on prenatal ultrasounds.’
      • ‘Because of my controversial choices, I've had regular, probably more than most women, mammograms, ultrasounds.’
      • ‘Although most are rarely needed, there are literally hundreds of laboratory tests and other studies that can be ordered (X-rays, CT scans, ultrasounds, etc.).’
      • ‘Some other countries' health plans call for one or two ultrasounds per pregnancy, although I have not been able to determine whether this in fact takes place.’
      • ‘These typically will resolve without intervention, but they are monitored with periodic renal ultrasounds to ensure complete resolution.’
      • ‘Where once this procedure had been reserved for problem pregnancies or those occurring in ‘older’ women, today, with no medical authorization, pregnant women can obtain ultrasounds in shopping malls.’
      • ‘I never listened when I got the ultrasounds and examinations, I didn't want to hear.’
      • ‘There are three types of ultrasounds: scanning devices, doptones, and external fetal monitors (EFMs).’
      • ‘Abdominal ultrasounds, multiple upper gastrointestinal studies and an air contrast barium enema had been normal since the cholecystectomy.’
      • ‘Women should not be patronised, marginalised or ‘forced’ to undergo or watch ultrasounds in early pregnancy.’
      • ‘The counselor will also want to look over your medical records, including any ultrasounds, prenatal test results, past pregnancies, and medications you may have taken before or during pregnancy.’
      examination, screening
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