ultrasonics

plural noun
ul·​tra·​son·​ics | \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, in the meaning defined at sense 1

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The first known use of ultrasonics was in 1924

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ul·​tra·​son·​ics | \ˌəl-trə-ˈsän-iks \

Medical Definition of ultrasonics 

1 : the science or technology of ultrasonic phenomena

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