cultural assimilation

Cultural assimilation (often called merely assimilation) is an intense process of consistent integration whereby members of an ethno-cultural group, typically immigrants, or other minority groups, are "absorbed" into an established, generally larger community. This presumes a loss of many characteristics which make the newcomers different. A region or society where assimilation is occurring is sometimes referred to as a melting pot. Assimilation can also be the process through which people lose originally differentiating traits, such as dress, speech particularities or mannerisms, when they come into contact with another society or culture. Often used to describe immigrant adaptation to new places or residence.
See more at Wikipedia.org...