adjective
- relating to or being sound waves with frequencies below the range of human hearing (typically below 20 Hz)
Usage: technical; physics
Examples
- Elephants communicate using infrasonic calls that can travel for miles.
- The earthquake produced infrasonic waves that were detected by sensitive instruments.
- Infrasonic frequencies are often used to study atmospheric disturbances.
- Scientists use infrasonic monitoring to track volcanic activity.
- The infrasonic rumble from the explosion was felt rather than heard.
- Weather patterns can generate infrasonic signals in the atmosphere.