ultrasound

noun
ul·​tra·​sound | \ˈəl-trə-ˌsau̇nd \

Definition of ultrasound 

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

3 : a diagnostic examination using ultrasound

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.
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Recent Examples on the Web

The remainder of the gallery includes photos of the duo (and their pup!) showing off their baby’s ultrasound, holding blue balloons and more. Deena Cortese, PEOPLE.com, "Baby Boy on the Way for Jersey Shore's Deena Cortese," 2 July 2018 The first sign that something might be wrong had come at 21 weeks, when a routine ultrasound flagged a small amount of fluid around the baby's heart. The Washington Post, OregonLive.com, "Some people do better exercising at a low-intensity pace," 29 Apr. 2018 Scientists will be perfecting artificial insemination techniques and embryo transfer techniques on the females, which undergo weekly ultrasounds. Time, "A Pregnant Rhino in San Diego Could Help Save a Related Subspecies," 19 May 2018 Sarkar and Harrison said that primary-care providers must be on the lookout for a combination of risk factors that warrant sending patients to a specialist for a noninvasive liver ultrasound known as a FibroScan. Cathie Anderson, sacbee, "A liver disease you've never heard of is putting 12 million Americans' lives at risk," 7 June 2018 According to a video of an early ultrasound that Joanna shared on Instagram, Chip had an early suspicion that their baby would be a boy. Sarah Midkiff, refinery29.com, "Chip & Joanna Gaines Welcome New Baby & Our Shiplap-Loving Hearts Are Bursting," 23 June 2018 His teams are also working to build other forms of ultrasound, including a wearable patch and a pill that could image cancer from within the body. Rebecca Lurye, courant.com, "Starting With Ultrasound, An Innovation Empire Is Growing In Guilford," 15 Apr. 2018 But then, at eight weeks, an ultrasound revealed that her fetus had no heartbeat. Michael Paulson, New York Times, "‘Frozen’ on Broadway Made Them Sisters. Heartbreak Made Them Friends.," 6 Mar. 2018 So far all the tests and ultrasounds say baby is healthy! Karen Mizoguchi, PEOPLE.com, "RHOA's Kenya Moore Says 'Baby Daly Is Giving Me Amazing Skin' in Update on Her Growing Bump," 12 July 2018

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.

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First Known Use of ultrasound

1923, in the meaning defined at sense 1

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Last Updated

6 Nov 2018

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Time Traveler for ultrasound

The first known use of ultrasound was in 1923

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More Definitions for ultrasound

ultrasound

noun

English Language Learners Definition of ultrasound

: a type of sound that is too high for humans to hear

medical : a method of producing images of the inside of the body by using a machine that produces sound waves which are too high to be heard

: an image that is made using ultrasound

ultrasound

noun
ul·​tra·​sound | \ˈəl-trə-ˌsau̇nd \

Medical Definition of ultrasound 

(Entry 1 of 2)

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

adjective

Medical Definition of ultrasound (Entry 2 of 2)

: of, relating to, performed by, using, or specializing in ultrasound an ultrasound technician ultrasound imaging

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