Centrifuge is a machine that uses centrifugal force to separate substances of differing densities. There are several synonyms for the term centrifuge including a separator, a clarifier, a decanter, and a hydrocyclone. A separator works by separating the solid or liquid component from a mixture, a clarifier is used to remove impurities, and a decanter separates fluids by density. A hydrocyclone, also known as a cyclone separator, is mainly used for the separation of solids from liquids. Other synonyms include centrifugal separator and centrifugal cleaner. These machines have a variety of applications including use in scientific laboratories, medical facilities, and industrial processes.