Final answer:
The term for the belief that one's culture is superior to others is ethnocentrism, which involves judging other cultures by one's own cultural standards.
Step-by-step explanation:
The term for a belief that one's culture is superior to another is ethnocentrism. Ethnocentrism is the belief or attitude that one's own culture is better than all others. It involves evaluating and judging another culture based on one's own cultural norms. This concept is characterized by evaluating and judging other cultures based on the standards and norms of one's own culture. Sociologist William Graham Sumner explained ethnocentrism as having the belief or attitude that one's own culture is better than all others, which often leads to viewing cultural differences in other societies as incorrect or inferior.