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
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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 of ultrasound from the Web
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The organ looked oversized, but an ultrasound won’t delineate specific masses.
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The image of our baby on the ultrasound monitor—without movement, without a heartbeat—
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My doctor suggested a transvaginal ultrasound out of an abundance of caution.
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An ultrasound showed extensive calcium deposits on the brain, more Zika evidence.
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An ultrasound revealed that the testicle had atrophied, with scarring and damage from a previous injury, according to court documents.
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Early detection with ultrasound can allow physicians to break up gallstones before symptoms become too severe.
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Ultrasounds showed there was no more water left in my belly for our sweet baby, whose heartbeat was strong.
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After her chat with Kim’s doctor, Khloé heads to get an ultrasound.
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.
First Known Use of ultrasound
1923
ULTRASOUND Defined for English Language Learners
ultrasound
playDefinition of ultrasound for English Language Learners
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: a type of sound that is too high for humans to hear
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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
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: an image that is made using ultrasound
Medical Dictionary
Medical Definition of ultrasound
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
Medical Definition of ultrasound
: of, relating to, performed by, using, or specializing in ultrasound an ultrasound technician ultrasound imaging
Learn More about ultrasound
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See words that rhyme with ultrasound Spanish Central: Translation of ultrasound Nglish: Translation of ultrasound for Spanish speakers Britannica English: Translation of ultrasound for Arabic speakers Britannica.com: Encyclopedia article about ultrasound
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