Incretin (417524005) Definition insulinotropic peptides released by the gastrointestinal tract in response to food; stimulates insulin secretion and inhibits glucagon secretion. [from CRISP]
In simple terms, racism is the belief that distinct human races exist and that one race is superior to another. This definition is generally agreed by the Oxford English Dictionary, Merriam-Webster Dictionary (USA) and the Macquarie Dictionary (Australia).
Societal racism is a term which refers to racist attitudes within a society It also been called structural racism, because, acording to Carl E. James, society is structured in a way that excludes substantial numbers of people from minority backgrounds from taking part in social institutions.