ultrasonics


ul·tra·son·ics

noun plural \ˌəl-trə-ˈsä-niks\

Definition of ULTRASONICS

1
:  ultrasonic vibrations or compressional waves
2
singular in construction :  the study of ultrasonic vibrations and their associated phenomena
3
:  ultrasonic devices

First Known Use of ULTRASONICS

1924

ul·tra·son·ics

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

Medical Definition of ULTRASONICS

1
: the science or technology of ultrasonic phenomena

ultrasonics

   (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.

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