1. rheumatology-the branch of medicine dealing with the study and treatment of pathologies of the muscles or tendons or joints. medical specialty, medicine-the branches of medical science that deal with nonsurgical techniques.
This multiculturalism, or diverse cultural environment, is why America is commonly referred to as a 'melting pot'. The American political culture is based on the important principle that America welcomes and celebrates people from many different countries, races and religions.
American ethnicity. For the article on the population of the United States, see Americans. American ethnicity or American ancestry refers to people who self-identify their ancestry as American, rather than the more common officially recognized racial and ethnic groups that make up the bulk of the American people.