True or false? when more than cultural group lives in an area is called cultural diffusion

False. The definition of cultural diffusion is what happens when the cultural beliefs and social activities are spread through different ethnicities, religions, nationalities, etc. An example of cultural diffusion is the tradition of the German Christmas pickle becoming popular in the United States.

I think true, but isn't cultural diffusion the spread of cultural beliefs, not the act of many cultural groups living together?