(physics) Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz. / (medicine) The use of ultrasonic waves for diagnostic or therapeutic purposes.

(transitive, intransitive) To treat with ultrasound.

plural of ultrasound

simple past tense and past participle of ultrasound

present participle of ultrasound

(uncountable) A medical ultrasound technique, used, for example, during pregnancy, providing three-dimensional-looking flat images. / (countable) An image so produced.

(uncountable) A medical ultrasound technique that produces a sequence of 3D images over time. / (countable) An image so produced.

plural of 4D ultrasound

plural of 3D ultrasound