Ultrasound (noun)

A diagnostic technique that uses high-frequency sound waves to produce images of internal organs and structures of the body, used especially in obstetrics and gynecology.

Origin:

Early 20th century: from ultra- + sound.

Examples:

1. The ultrasound revealed a healthy baby.
2. The ultrasound showed that the fetus was developing normally.
3. Ultrasound is often used to check for abnormalities in pregnancy.
4. Ultrasound is a non-invasive diagnostic tool.
5. Ultrasound can also be used to guide medical procedures.