ultrasonic

adjective
ul·​tra·​son·​ic | \ ˌəl-trə-ˈsä-nik \

Definition of ultrasonic

1 : having a frequency above the human ear's audibility limit of about 20,000 hertz used of waves and vibrations
2 : utilizing, produced by, or relating to ultrasonic waves or vibrations

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Other Words from ultrasonic

ultrasonically \ ˌəl-​trə-​ˈsä-​ni-​k(ə-​)lē \ adverb

Did You Know?

Ultrasound, or ultrasonography, works on the principle that sound is reflected at different speeds by tissues or substances of different densities. Ultrasound technology has been used medically since the 1940s. Sonograms, the pictures produced by ultrasound, can reveal heart defects, tumors, and gallstones; since low-power ultrasonic waves don't present any risks to a body, they're most often used to display fetuses during pregnancy in order to make sure they're healthy. Ultrasonics has many other uses, including underwater sonar sensing. High-power ultrasonics are so intense that they're actually used for drilling and welding.

Examples of ultrasonic in a Sentence

Recent Examples on the Web

Under ordinary circumstances, almost no-one hears ultrasonic signals. Robert Lee Hotz, WSJ, "Can Ultrasonic Noise Make You Sick?," 16 June 2018 However, Blass says Samsung will use an ultrasonic sensor, which uses sound rather than light to read your fingerprint. Michael Simon, PCWorld, "Samsung Galaxy S10 rumors: It won't have a notch but it might have... a hole?," 13 Nov. 2018 Component maker Synaptics figured out how to take a picture of fingers by looking in between the phone’s pixels; Qualcomm created an ultrasonic sensor capable of scanning not only through screens but also metal … and even underwater. Geoffrey Fowler, Philly.com, "Whoa! Meet the future phones that fold up, have 9 cameras, and charge over thin air," 1 July 2018 Then there's uBeam, which uses ultrasonic waves to transmit power. David Pogue, Scientific American, "Why Can't We All Charge Our Phones Wirelessly?," 1 Sep. 2017 This ultrasonic cool mister from Crane is our favorite for cool misters. Courtney Campbell, USA TODAY, "These are the 5 Amazon deals you can get before the weekend," 13 Apr. 2018 Component maker Synaptics figured out how to take a picture of fingers by looking in between the phone's pixels; Qualcomm created an ultrasonic sensor capable of scanning not only though screens but also metal . . . and even underwater. Geoffrey A. Fowler, chicagotribune.com, "Whoa! Meet the future phones that fold up, have 9 cameras and charge over thin air.," 6 July 2018 Component maker Synaptics figured out how to take a picture of fingers by looking in between the phone's pixels; Qualcomm created an ultrasonic sensor capable of scanning not only though screens but also metal ... and even underwater. Geoffrey Fowler, courant.com, "Future Phones: They Fold Like Napkins, Have 9 Cameras, Charge Over Thin Air," 6 July 2018 One team at the University of Michigan said in March that the symptoms may have been the result, not of a deliberate attack, but of sound distortion caused by ultrasonic surveillance devices placed too close together. Josh Chin, WSJ, "U.S. Evacuates Workers From China After Complaints of Mystery Illness," 7 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ultrasonic.' 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 ultrasonic

1923, in the meaning defined at sense 1

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Last Updated

1 Dec 2018

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Time Traveler for ultrasonic

The first known use of ultrasonic was in 1923

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More Definitions for ultrasonic

ultrasonic

adjective

English Language Learners Definition of ultrasonic

—used to describe sounds that are too high for humans to hear

ultrasonic

adjective
ul·​tra·​son·​ic | \ -ˈsän-ik \

Medical Definition of ultrasonic

1a : having a frequency above the human ear's audibility limit of about 20,000 hertz used of waves and vibrations
b : utilizing, produced by, or relating to ultrasonic waves or vibrations removal of tartar with an ultrasonic scaler

Other Words from ultrasonic

ultrasonically \ -​i-​k(ə-​)lē \ adverb

More from Merriam-Webster on ultrasonic

Rhyming Dictionary: Words that rhyme with ultrasonic

Spanish Central: Translation of ultrasonic

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