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
An ultrasound and several biopsies confirmed bilateral cancer.
—
Brianne Tracy, People.com, 4 June 2025
An ovarian cyst could be identified through a pelvic ultrasound, laparoscopy, pregnancy test or tumor marker test (if ovarian cancer is suspected), per Mayo Clinic.
—Caroline C. Boyle, USA Today, 4 June 2025
An ultrasound reportedly showed the fetus stopped breathing 33 weeks into pregnancy, but its parents held out hope.
—Brian Niemietz, New York Daily News, 3 June 2025
Renal ultrasound: This noninvasive imaging test can detect kidney injury, changes in blood vessels or filtering units, and abnormal cysts or growths.
—Md Published, Verywell Health, 3 June 2025
See All Example Sentences for ultrasound
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Brianne Tracy, People.com, 4 June 2025
An ovarian cyst could be identified through a pelvic ultrasound, laparoscopy, pregnancy test or tumor marker test (if ovarian cancer is suspected), per Mayo Clinic.
—Caroline C. Boyle, USA Today, 4 June 2025
An ultrasound reportedly showed the fetus stopped breathing 33 weeks into pregnancy, but its parents held out hope.
—Brian Niemietz, New York Daily News, 3 June 2025
Renal ultrasound: This noninvasive imaging test can detect kidney injury, changes in blood vessels or filtering units, and abnormal cysts or growths.
—Md Published, Verywell Health, 3 June 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 11 Jun. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share