ultrasound meaning

Noun: ultrasound  `últru'sawnd

1. 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 foetal growth or study bodily organs
   - sonography, ultrasonography, echography

Derived forms: ultrasounds

See also: ultrasonic

Type of: imaging, prenatal diagnosis, sound, tomography

Encyclopedia: Ultrasound

[Architecture]

Acoustic oscillations having a frequency above the high-frequency limit of audible sound, i.e., above 20,000 Hz.

[Electronics]
1. Acoustic disturbances at frequencies above 20 kHz.
2. See ULTRASONIC FREQUENCY.
3. See ULTRASONOGRAPHY.

[Medicine]
n
1 : vibrations of the same physical nature as sound but with frequencies above the range of human hearing —compare INFRASOUND
2 : the diagnostic or therapeutic use of ultrasound and esp. a noninvasive technique involving the formation of a two-dimensional image used for the examination and measurement of internal body structures and the detection of bodily abnormalities —called also echography, sonography, ultrasonography
3 : a diagnostic examination using ultrasound
²ultrasound
adj : of, relating to, performed by, using, or specializing in ultrasound ‹an ultrasound technician› ‹ultrasound imaging›

• doppler ultrasound:    [Medicine]That par ...
• interventional ultrasound:    [Medicine]Ultrason ...
• ultrasound mammographies:    [Medicine]Use of u ...

Examples

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1. this method is used for infants less than one year of age when ultrasound equipment is not available.
2. chinese journal of medical ultrasound electronic version
3. the design of ultrasound subsystem in pacs his environmen t
4. diagnosis of endometrial polyp : transvaginal ultrasound
5. prs-1000zs series of ultrasound zhen board input devices