Difference between pumps and compressor?

Though these words may be used interchangeably, there is a difference. A pump is a motor designed to move fluids (whether gas or liquid). A compressor is a kind of pump that has a motor that forces air molecules closer together to pack more matter in a smaller volume. Gases are the only things that are compressable where pumps deal more with liquids (mainly water) although there are air pumps.

First answer by Mayoman7. Last edit by Mayoman7. Contributor trust: 28 [recommend contributor]. Question popularity: 1 [recommend question]