English · Science & Technology
ultrasound
/ˈʌl.trə.saʊnd/
[/ˈʌl.trə.saʊnd/]
high-frequency sound imaging
Intermediatenoun
Definition
A scan that uses high-frequency sound waves to make images of the inside of the body.
Example
During the ultrasound, the expectant parents saw their baby's heartbeat for the very first time.
During the ultrasound, the expectant parents saw their baby's heartbeat for the very first time.
Etymology
Combining 'ultra' (Latin, beyond) and 'sound', referring to sound above human hearing.
How & Where It’s Used
Common in pregnancy care and many medical examinations.