Final answer:
An ethnic residential cluster that endures may be termed an enclave, which refers to neighborhoods where a single ethnicity predominates and supports cultural preservation and community.
Step-by-step explanation:
An ethnic residential cluster that endures may be termed an enclave. The term 'ghetto' historically referred to areas where minority groups were forced to live and was associated with discriminatory practices. Over time, social scientists adopted the term 'ethnic enclave' to describe neighborhoods predominated by a single ethnicity without the negative connotations of 'ghetto'. Enclaves serve as a cultural hub where members of an ethnic group can support each other, preserve their traditions, and provide a comfortable starting point for recent immigrants in the process of acculturation and assimilation. They can also become attractive tourist destinations when themed accordingly, such as many cities' Chinatowns.