Ethnocentrism may be defined to explain the individual's behavior and thinking on the basis of culture. The ethnocentrism term was first used by William G. Sumner.
The ethnocentrism explain the strong association of the one's belief and its influence by the culture. The ethnocentrism create the feeling of the superiority of the culture and shows the judgmental behavior on the different culture.
Ethnocentrism refers to the tendency to see other people's culture i.e way of life such as mode of dressing, eating pattern, marital rites etc as INFERIOR, while ONLY your own culture is normal, natural and superior, and should therefore be adopted by all people.