Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Of or relating to acoustic frequencies above the range audible to the human ear, or above approximately 20,000 hertz.
- adjective Of, relating to, or involving ultrasound.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective acoustics Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20
kilohertz or higher.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective having frequencies above those of audible sound
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Mexican Freetail bats sing mostly in ultrasonic frequencies that are right above the upper limit of human hearing.
Researchers Study How Singing Bats Communicate | Impact Lab 2007
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It also has the world’s smallest and lightest gyro-sensor and dynamic lift comes from powerful ultra-thin ultrasonic motors and newly designed, optimally shaped main rotors.
Flying Wi-Fi robot 2004
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I (unintelligible) to the factory and they used a technique called ultrasonic welding to glue plastic components together.
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I (unintelligible) to the factory and they used a technique called ultrasonic welding to glue plastic components together.
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We separate cold air supply and warm air return, and we utilize a process called ultrasonic humidification.
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So, remembering that my surgeon said he used a "harmonic scalpel" that vibrates, I googled it and found that the "ultrasonic" blade he used vibrates 55,500 times per second.
Archive 2007-02-01 Field Notes 2007
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So, remembering that my surgeon said he used a "harmonic scalpel" that vibrates, I googled it and found that the "ultrasonic" blade he used vibrates 55,500 times per second.
Sonic Blade Field Notes 2007
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This technology is more typically used for industrial applications such as ultrasonic cleaning.
The Engineer - News 2010
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Also worth mentioning is the loan provided by Fundación Paraguaya that was of great help in helping her acquire electronic spare parts for certain devices, such as ultrasonic nebulizers that can be very expensive, and other appliances.
Kiva Loans 2010
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Professor Drinkwater claims that by increasing the size of the shock wave and creating a rotational motion, it will be possible to create a kind of ultrasonic "force field" that would have the power to undo screws.
Telegraph.co.uk - Telegraph online, Daily Telegraph and Sunday Telegraph 2010
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