chāo​shēng

ultrasonic

超声 (超聲) chāo​shēng
ultrasonic verb
relating to sound waves with a frequency above the upper limit of human hearing

Bats use ultrasound to locate their prey.

ultrasound verb
the use of ultrasonic waves for diagnostic imaging or medical treatment

The doctor suggested she have an abdominal ultrasound scan.

Frequency

Movie subtitles
1.31 per million appears in 0% of films
Written text
12.7 per million

Sources

Definitions
CC-CEDICT