Ethnocentrism

Ethnocentrism is the attitude that one's own culture is superior to others.

Definition

According to Looking Out, Looking In by Adler, Proctor (15th edition),

Ethnocentrism. The attitude that one's own culture is superior to others.

According to the HRBoK Guide,

Ethnocentrism. Belief that one's own culture is superior. The belief that one's own culture is the center of everything and other cultures are less effective or less important.