- a betrayal or swindle of a colleague.
- an attempt to win a contest that one has agreed beforehand to lose.
- a cross in which both parents are first-generation hybrids from single crosses, thus involving four inbred lines.
- to prove treacherous to; betray or swindle, as by a double cross.
- a technique for producing hybrid stock, esp seed for cereal crops, by crossing the hybrids between two different pairs of inbred lines
- to cheat or betray
- the act or an instance of double-crossing; betrayal
