Dictionary![]() ![]() dou'ble cross'1. a betrayal or swindle of a colleague. 2. an attempt to win a contest that one has agreed beforehand to lose. Cf. cross (def. 21). 3. Genetics.a cross in which both parents are first-generation hybrids from single crosses, thus involving four inbred lines. dou•ble-crossPronunciation: (dub'ul krôs', -kros'), [key] —v.t. Informal. to prove treacherous to; betray or swindle, as by a double cross. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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