Marriage between people belonging to different groups, such as different racial, ethnic, or religious groups; mixed marriage.(noun)
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Use "intermarriage" in a sentence
"Others say the decline in intermarriage is a non-issue."
"That said, I personally use the term intermarriage when talking about White Latino marriages in part because I think a marriage between myself (White woman) and someone like the rapper Fabolous (black looking Latino) would be treated differently than some one like Emilio Estevez (White looking Latino)."
"The very fact that people felt the need to write these rules concerning intermarriage is telling in itself."