When one culture copies another culture what is it called?

When one culture copies elements from another culture, it is often referred to as "cultural appropriation." This term typically implies a power dynamic where a dominant culture adopts aspects of a marginalized culture, often without permission or understanding, which can lead to controversy and discussions about respect and representation. Alternatively, more neutral terms like "cultural exchange" or "cultural diffusion" describe the sharing and blending of cultural elements without the same negative connotations.