ultrasonics
plural noun
ul·tra·son·ics ˌəl-trə-ˈsä-niks 
1
: ultrasonic vibrations or compressional waves
2
singular in construction : the study of ultrasonic vibrations and their associated phenomena
3
: ultrasonic devices
Example Sentences
Recent Examples on the Web The full suite of sensors Volvo has presented include cameras, ultrasonics, LiDARs and radars. 
James Morris, Forbes, 3 July 2021
James Morris, Forbes, 3 July 2021 Word History
First Known Use
1924, in the meaning defined at sense 1
Medical Definition
ultrasonics
noun, plural in form but singular in construction
ul·tra·son·ics ˌəl-trə-ˈsän-iks
1
: the science or technology of ultrasonic phenomena
2
: ultrasound sense 2
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