ultrasound

noun

ul·​tra·​sound ˈəl-trə-ˌsau̇nd How to pronounce ultrasound (audio)
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

Example Sentences

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 In this non-surgical procedure, healthcare providers use a magnetic resonance imaging (MRI) system to locate your uterine fibroids and then zap them with high-frequency ultrasound. Amanda Gardner, Health, 24 Jan. 2023 Expectant parents tend to get serious about finalizing and sharing their list in the second trimester, after the 20-week ultrasound visit. Rachel Rothman, Good Housekeeping, 23 Jan. 2023 On those scores, early ultrasound failed miserably. Clifford Marks, The New Yorker, 20 Jan. 2023 In order to definitively find a blood clot, your doctor may recommend imaging, such as a Doppler ultrasound of the leg. L'oreal Thompson Payton, Fortune, 10 Jan. 2023 Heart tests like an electrocardiogram (EKG) and echocardiogram or ultrasound of heart, can reveal some, but not all, defects. Jeremy Redmon, ajc, 3 Jan. 2023 The Butterfly ultrasound system received US Food and Drug Administration 510(k) clearance for human use in October 2017. Jennifer Kite-powell, Forbes, 28 Dec. 2022 An ultrasound a month later, when the baby was larger and the heart could be seen more clearly, confirmed the severity of the diagnosis. Elizabeth Cohen, CNN, 23 Dec. 2022 What is special about ultrasound compared to other imaging technology? Jayne Williamson-lee, STAT, 17 Dec. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ultrasound.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1923, in the meaning defined at sense 1

Time Traveler
The first known use of ultrasound was in 1923

Dictionary Entries Near ultrasound

Cite this Entry

“Ultrasound.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrasound. Accessed 31 Jan. 2023.

Kids Definition

ultrasound

noun
ul·​tra·​sound ˈəl-trə-ˌsau̇nd How to pronounce ultrasound (audio)
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 How to pronounce ultrasound (audio)
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

More from Merriam-Webster on ultrasound

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


Fashionable Words

  • dog-sunglasses-scarf
  • Which of these items is named for a deadly weapon?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY