ultrasound

Noun (2)

1. very high frequency sound; used in ultrasonographyType of sound
2. 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 organsSynonyms: sonographyultrasonographyechographyType of imaging, prenatal diagnosisKinds A-scan ultrasonography, B-scan ultrasonography