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ultrasound
[ uhl-truh-sound ]
noun
- Physics. sound with a frequency greater than 20,000 Hz, approximately the upper limit of human hearing.
- Medicine/Medical. the application of ultrasonic waves to therapy or diagnostics, as in deep-heat treatment of a joint or imaging of internal structures.
ultrasound
/ ˈʌltrəˌsaʊnd /
noun
- ultrasonic waves at frequencies above the audible range (above about 20 kHz), used in cleaning metallic parts, echo sounding, medical diagnosis and therapy, etc
ultrasound
/ ŭl′trə-sound′ /
- Sound whose frequency is above the upper limit of the range of human hearing (approximately 20 kilohertz).
- See ultrasonography
- An image produced by ultrasonography.
ultrasound
- A method of diagnosing illness and viewing internal body structures in which sound waves of high frequency are bounced off internal organs and tissues from outside the body. The technique measures different amounts of resistance the body parts offer to the sound waves, and then uses the data to produce a “picture” of the structures. Ultrasound is often used to obtain an image of the developing fetus in pregnant women; the image can confirm the presence of twins or triplets and can be used to diagnose some abnormalities.
Notes
Word History and Origins
Origin of ultrasound1
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Example Sentences
A team of researchers at the University of California San Diego has developed a new and improved wearable ultrasound patch for continuous and noninvasive blood pressure monitoring.
The team then tracked the human and robot movement using an ultrasound tracking system.
"Literally all I had was some stabbing pain on a Sunday night. I went to the doctor and was sent for an ultrasound on the Tuesday."
Now on Crain’s third hospital visit, an obstetrician insisted on two ultrasounds to “confirm fetal demise,” a nurse wrote, before moving her to intensive care.
It calls for policies like mandatory ultrasounds for medication abortion and establishing only two legal genders along with a bunch of standard-issue conservative movement policies going back decades.
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