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double cross
- Genetics a new hybrid produced by crossing two existing hybrids (A × B → AB, C × D → CD, AB × CD → ABCD)
- Informal a double-crossing; treachery
transitive verb
Informal to betray (a person) by doing the opposite of, or intentionally failing to do, what one has promised
Related Forms:
- double-crosser noun
See double cross in American Heritage Dictionary 4
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