barometric pressure
nounUK /ˌbærəˈmetrɪk ˈpreʃə/
US /ˌbærəˈmetrɪk ˈpreʃər/
Barometric pressure is how heavy the air pushes down on everything around us.
The weather report said the barometric pressure was falling, so a storm might be coming.
OTHER MEANINGS
2. The force the atmosphere exerts on a surface, measured with a barometer.
Scientists recorded the barometric pressure at the top of the mountain.
3. A measure used to predict changes in the weather.
High barometric pressure usually means clear, sunny skies.
4. The pressure of the air at a particular height above sea level.
As the plane climbed, the barometric pressure outside dropped.