ultrasonic

American  

[uhl-truh-son-ik] / ˌʌl trəˈsɒn ɪk /

adjective

1. of, relating to, or utilizing ultrasound.

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ultrasonic British  

/ ˌʌltrəˈsɒnɪk /

adjective

1. of, concerned with, or producing waves with the same nature as sound waves but frequencies above audio frequencies See also ultrasound

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Other Word Forms

• ultrasonically
  adverb

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Etymology

Origin of ultrasonic

First recorded in 1925–30; ultra- + sonic

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Compare meaning

How does ultrasonic compare to similar and commonly confused words? Explore the most common comparisons:

• ultrasonic vs. ultrasound

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Example Sentences

See Examples For:

ultrasonic

As users are lowered into the water, a ring made of microscopic squares creates and records ultrasonic waves.

From MarketWatch ● Jun. 18, 2026

Tesla’s vehicles are equipped with cameras and onboard computers—and previously, ultrasonic sensors and radar—that enable those functions.

From The Wall Street Journal ● Apr. 20, 2026

The Afeela 1 was equipped with 18 cameras, nine radars, 12 ultrasonic sensors and lidar — allowing it to qualify for level two autonomy, which requires a driver in control.

From Los Angeles Times ● Mar. 26, 2026

Taken together, these findings indicate that ultrasonic repellents could potentially be designed so hedgehogs can hear them while humans and pets cannot.*

From Science Daily ● Mar. 12, 2026

In other experiments, blowflies, mealworms, and yellow fever mosquitoes have been killed by airborne ultrasonic sound in a matter of seconds.

From "Silent Spring" by Rachel Carson

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