Echography vs. Ultrasound

Echographynoun

(medicine) The use of ultrasound as a diagnostic aid.

Ultrasoundnoun

(physics) Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz.

Ultrasoundnoun

(medicine) The use of ultrasonic waves for diagnostic or therapeutic purposes.

Ultrasoundverb

(ambitransitive) To treat with ultrasound.

Ultrasoundnoun

very high frequency sound; used in ultrasonography

Ultrasoundnoun

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

Ultrasoundnoun

sound or other vibrations having an ultrasonic frequency, particularly as used in medical imaging

Ultrasoundnoun

an ultrasound scan, especially one of a pregnant woman to examine the fetus

Ultrasound

Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is not different from (audible) sound in its physical properties, except that humans cannot hear it.