Glossary term
atmospheric pressure
Definition
The force per unit area at a given location on the Earth caused by the weight of the air above it. At sea level, this pressure is about 10 N per cm2 (101.3 kPa in SI units).
The force per unit area at a given location on the Earth caused by the weight of the air above it. At sea level, this pressure is about 10 N per cm2 (101.3 kPa in SI units).