ultrasound
noun
ul·tra·sound
ˈəl-trə-ˌsau̇nd 
plural ultrasounds
1
: vibrations of the same physical nature as sound but with frequencies above the range of human hearing
2
: the diagnostic or therapeutic use of ultrasound and especially 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 sonography, ultrasonography
3
: a diagnostic examination using ultrasound
The patient was scheduled for an abdominal ultrasound.
prenatal ultrasounds
Examples of ultrasound in a Sentence
They used ultrasound to examine his heart.
She had an ultrasound exam this morning.
She had an ultrasound this morning.
She showed me an ultrasound of her unborn baby.
Recent Examples on the Web
But recently, researchers have been pushing the boundaries of what ultrasound can do, including using it to treat medical conditions.
—
Jenny Lehmann, Discover Magazine, 1 May 2025
The clip then cuts to Quinn and her partner holding her pregnant belly and photos from an ultrasound.
—Thomas G. Moukawsher, MSNBC Newsweek, 25 Apr. 2025
His caption accompanied a montage of memories from their pregnancy journey, including ultrasound scans, IVF treatments, hospital visits, and a photo of Crew.
—Zoey Lyttle, People.com, 3 Apr. 2025
Where appropriate, clinicians may also consider alternative imaging methods that do not involve ionizing radiation, such as MRI or ultrasound – especially for younger patients or when repeat imaging is anticipated.
—New Atlas, 19 Apr. 2025
See All Example Sentences for ultrasound
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Jenny Lehmann, Discover Magazine, 1 May 2025
The clip then cuts to Quinn and her partner holding her pregnant belly and photos from an ultrasound.
—Thomas G. Moukawsher, MSNBC Newsweek, 25 Apr. 2025
His caption accompanied a montage of memories from their pregnancy journey, including ultrasound scans, IVF treatments, hospital visits, and a photo of Crew.
—Zoey Lyttle, People.com, 3 Apr. 2025
Where appropriate, clinicians may also consider alternative imaging methods that do not involve ionizing radiation, such as MRI or ultrasound – especially for younger patients or when repeat imaging is anticipated.
—New Atlas, 19 Apr. 2025
See All Example Sentences for ultrasound
Cite this Entry
“Ultrasound.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrasound. Accessed 9 May. 2025.
Copy CitationKids Definition
ultrasound
noun
ul·tra·sound
ˈəl-trə-ˌsau̇nd
1
: ultrasonic vibrations
2
: the use of ultrasound for medical diagnosis or treatment and especially a technique involving the formation of a two-dimensional image used for examining internal body structures and detecting abnormalities in the body
Medical Definition
ultrasound
1 of 2 noun
ul·tra·sound
ˈəl-trə-ˌsau̇nd
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 especially 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
ultrasound
2 of 2 adjective
: of, relating to, performed by, using, or specializing in ultrasound
an ultrasound technician
ultrasound imaging
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