1. ultrasound(n = noun.phenomenon) - very high frequency sound; used in ultrasonography;
is a kind of sound
Derived form adjective ultrasonic1
2. ultrasound(n = noun.act) echography, sonography, ultrasonography - 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;
is a kind of prenatal diagnosis, imaging, tomography
has particulars: a-scan ultrasonography, b-scan ultrasonography
ultrasound, n.
1 sound having an ultrasonic frequency.
2 ultrasonic waves.
Idiom:
ultrasound cardiography = ECHOCARDIOGRAPHY.