Толковый словарь английского языка Oxford English Reference - ultrasound
Ultrasound
ultrasound
n. 1 sound having an ultrasonic frequency. 2 ultrasonic waves. Phrases and idioms ultrasound cardiography = ECHOCARDIOGRAPHY.
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1.
noun Date: 1923 vibrations of the same physical nature as sound but with frequencies above the range of human hearing, the diagnostic or therapeutic use of ~ and especially a noninvasive technique involving the formation of a two-dimensional image used for the examination and measurement of internal body structures and the detection of bodily abnormalities, a diagnostic examination using ~ ...Толковый словарь английского языка
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