pressure waves
nounPressure waves are invisible pushes that travel through air, water, or other stuff, like the ripples that carry sound to your ears.
When the drummer hit the drum, pressure waves spread through the air and reached our ears as sound.
OTHER MEANINGS
2. Waves of increased pressure that move through a fluid, such as the blast from an explosion.
The explosion sent pressure waves through the water that shook the nearby boat.
3. In medicine, rhythmic pressure changes used in treatments like shockwave therapy to help heal tissues.
The doctor used pressure waves to break up the kidney stone without surgery.
4. Changes in air pressure that travel through the atmosphere and can affect weather patterns.
Scientists tracked the pressure waves moving across the ocean to better predict storms.