ultrasound
/ˈʌltrəˌsaʊnd/
noun
- A medical procedure that uses high-frequency sound waves to create images of the inside of the body, often used to check on a developing baby during pregnancy.
- The ultrasound showed that the patient's kidneys were healthy.
- The doctor scheduled an ultrasound to check the baby's growth.
- She had an ultrasound at 20 weeks to find out the baby's gender.
- Sound waves with a frequency higher than the upper limit of human hearing, used in medical imaging, cleaning, and other technologies.
- Ultrasound can be used to detect cracks in metal structures.
- The cleaning machine uses ultrasound to remove dirt from delicate jewelry.
- Bats use ultrasound to navigate in the dark.
Synonyms