인간의 가청 범위를 넘어서는 높은 주파수의 음파
Sound waves with frequencies higher than the upper audible limit of human hearing.
예문:
"Some animals communicate using ultrasound frequencies that humans cannot hear."
"The device emits ultrasound to deter rodents from entering the building."
초음파를 이용하여 신체 내부의 장기나 태아를 시각화하는 검사 방법
A diagnostic imaging technique based on the application of ultrasound, often used to visualize a fetus or internal organs.
예문:
"The doctor scheduled an abdominal ultrasound to check for gallstones."
"The technician applied a cool gel to the patient's skin before starting the ultrasound."