ULTRASOUND

sonography, ultrasonography, echography, ultrasound

(noun) using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs

ultrasound

(noun) very high frequency sound; used in ultrasonography

Source: WordNet® 3.1

Etymology

Noun

ultrasound (countable and uncountable, plural ultrasounds)

(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.

Antonyms

• (physics): infrasound

Verb

ultrasound (third-person singular simple present ultrasounds, present participle ultrasounding, simple past and past participle ultrasounded)

(ambitransitive) To treat with ultrasound.