Scientific racism is the use of scientific techniques and hypotheses to support or justify the belief in racism, racial inferiority, or racial superiority, or alternatively the practice of classifying individuals of different phenotypes into discrete races.As a category of theory, scientific racism employs anthropology (notably physical anthropology), anthropometry, craniometry, and other disciplines, in proposing anthropologic typologies supporting the classification of human populations into physically discrete human races, that might be asserted to be superior or inferior.