ultrasonic
adjective
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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
Ewan Spence, Forbes, 1 Nov. 2024
Ultrasonic Devices Generally silent to human ears, ultrasonic devices emit a high-frequency sound that rats can’t stand.
—Mary Cornetta, Better Homes & Gardens, 24 Sep. 2024
Its enormous six-gallon tank uses ultrasonic technology to deliver incredibly fine water vapor across (up to) a 753-square-foot area.
—Jennifer Hussein, Allure, 1 Nov. 2024
Realistically, your best chance of success at naturally repelling rats may be using predator urine, repellent pouches, or ultrasonic devices that require less worry and upkeep.
—Mary Cornetta, Better Homes & Gardens, 24 Sep. 2024
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Cite this Entry
“Ultrasonic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrasonic. Accessed 29 Nov. 2024.
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ultrasonic
adjective
Medical Definition
ultrasonic
adjective
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