martingale

/M AA1 R T IH0 NG EY0 L/

noun

1
A piece of harness used on a horse to keep it from raising its head above a desired point.
2
A spar, or piece of rigging that strengthens the bowsprit.
3
A stochastic process for which the conditional expectation of future values given the sequence of all prior values is equal to the current value.
“If a gambler plays a fair game repeatedly, his payoff over time is a martingale.”
4
A gambling strategy in which one doubles the stake after each loss.
5
A strap attached to the sword handle, preventing a sword being dropped if disarmed.

Synonyms

verb

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