Acculturation is defined as –
Loss of culture sense
Isolation of two cultures
Fading away of culture
Mixing of two cultures when coming in contact
Acculturation 

Acculturation means "Culture contact", when there is contact between two peoples with different types of culture. There is diffusion of culture in both ways.
Various ways of culture contact are :
Trade and commerce
Industrialization
Propagation of religion
Education
Conquest