Intermarriage

Intermarriage normally refers to marriage between people belonging to different religions, tribes, nationalities or ethnic backgrounds. It has also been used to mean the opposite, namely marriage within a small group.

Marriages between different groups
Mixed marriages and relationships have probably been a part of human life, to some degree, ever since there were any divisions in the human species at all. Today with increased globalisation and its effect on communication and travel, rates of intermarriage may well be increasing. In most countries, it is totally acceptable, or even encouraged for various reasons.

Some have speculated that at some point in the future, intermarriage will blend the human species into one homogeneous group again.

A social norm of "marrying out" is termed "exogamy". A pejorative term is "miscegenation".