double cross

dou·ble-cross (dbl-krôs, -krs)

tr.v. dou·ble-crossed, dou·ble-cross·ing, dou·ble-cross·es

To betray by acting in contradiction to a prior agreement. See Synonyms at deceive.

n.

1. often double cross An act of betraying an ally, a friend, or an associate.

2. double cross Genetics A cross in which each parent is the product of a single cross. It can be represented as AB × CD, where A, B, C, and D are inbred lines.

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double-crosser n.

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double cross

n

(Life Sciences & Allied Applications / Genetics) a technique for producing hybrid stock, esp seed for cereal crops, by crossing the hybrids between two different pairs of inbred lines

Thesaurus

Noun	1.	double cross - an act of betrayal; "he gave us the old double cross"; "I could no longer tolerate his impudent double-crossing" double-crossing betrayal, perfidy, treachery, treason - an act of deliberate betrayal
Verb	1.	double cross - betray by double-dealing betray, sell - deliver to an enemy by treachery; "Judas sold Jesus"; "The spy betrayed his country"