The definition of compression force is the force generated from compressing an object or substance. Compression force is used to power everything from compression brakes to hand tools.
Compression force can be visualized by placing an object on a spring. When the spring is compressed and then released, the object is ejected into the air. This is a result of the compression force that is generated from compressing the spring.
Air compressors are also used to create power by generating compression force. When air enters a compressor, the air is compressed and the volume of the air changes. Compression force is exerted when the air is released.