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
• Syn: ↑sonography, ↑echography, ↑ultrasound
• Hypernyms: ↑imaging, ↑tomography, ↑prenatal diagnosis
• Hyponyms: ↑A-scan ultrasonography, ↑B-scan ultrasonography
Useful english dictionary. 2012.