ultrasonic

adjective
ul·​tra·​son·​ic | \ ˌəl-trə-ˈsä-nik How to pronounce ultrasonic (audio) \

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 How to pronounce ultrasonically (audio) \ 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

Because the Honeywell is an evaporative humidifier (as opposed to an ultrasonic model), the water is pushed through a wick filter. Stephanie Shore Fisher, Country Living, "The Honeywell HCM350W Humidifier Is Single-Handedly Helping Me Survive the Winter," 12 Feb. 2019 This ultrasonic cool mist humidifier has an easy-to-control dial knob to control the output. Rachel Rothman, Good Housekeeping, "The Best Humidifiers to Buy This Winter," 20 Dec. 2018 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

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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Statistics for ultrasonic

Last Updated

5 May 2019

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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 How to pronounce ultrasonic (audio) \

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 How to pronounce ultrasonically (audio) \ adverb

More from Merriam-Webster on ultrasonic

Rhyming Dictionary: Words that rhyme with ultrasonic

Spanish Central: Translation of ultrasonic

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