noun plural \ˌəl-trə-ˈsä-niks\

Definition of ULTRASONICS

:  ultrasonic vibrations or compressional waves
singular in construction :  the study of ultrasonic vibrations and their associated phenomena
:  ultrasonic devices

First Known Use of ULTRASONICS



noun plural but singular in construction \ˌəl-trə-ˈsän-iks\   (Medical Dictionary)

Medical Definition of ULTRASONICS

: the science or technology of ultrasonic phenomena


   (Concise Encyclopedia)

Vibrational or stress waves in elastic media that have a frequency above 20 kilohertz, the highest frequency of sound waves that can be detected by the human ear. They can be generated or detected by piezoelectric transducers (see piezoelectricity). High-power ultrasonics produce distortion in a medium; applications include ultrasonic welding, drilling, irradiation of fluid suspensions (as in wine clarification), cleaning of surfaces (such as jewelry), and disruption of biological structures. Low-power ultrasonic waves do not cause distortions; uses include sonar, structure testing, and medical imaging and diagnosis. Some animals, including bats, employ ultrasonic echolocation for navigation.


Next Word in the Dictionary: ultrasonography
Previous Word in the Dictionary: ultrasonic
All Words Near: ultrasonics

Seen & Heard

What made you want to look up ultrasonics? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More