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
Months later, the two consulted another pediatrician, who recommended an ultrasound.
—
Angela Andaloro, People.com, 17 June 2025
But during an ultrasound later in the pregnancy, a technician noted features suggesting the baby was actually a girl—though the view was unclear.
—Daniella Gray, MSNBC Newsweek, 17 June 2025
In 1993, researchers launched a major trial to test whether annual ultrasounds and blood tests could lower mortality.
—Siddhartha Mukherjee, New Yorker, 16 June 2025
An ultrasound confirmed the couple’s worst fear: The baby didn’t have a heartbeat.
—Matt Villano, CNN Money, 13 June 2025
See All Example Sentences for ultrasound
Examples are automatically compiled from online sources to
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Angela Andaloro, People.com, 17 June 2025
But during an ultrasound later in the pregnancy, a technician noted features suggesting the baby was actually a girl—though the view was unclear.
—Daniella Gray, MSNBC Newsweek, 17 June 2025
In 1993, researchers launched a major trial to test whether annual ultrasounds and blood tests could lower mortality.
—Siddhartha Mukherjee, New Yorker, 16 June 2025
An ultrasound confirmed the couple’s worst fear: The baby didn’t have a heartbeat.
—Matt Villano, CNN Money, 13 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 24 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
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