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Meaning of martingale

mar•tin•gale

Pronunciation: (mär'tn-gāl"), [key]
— n.
  1. part of the tack or harness of a horse, consisting of a strap that fastens to the girth, passes between the forelegs and through a loop in the neckstrap or hame, and fastens to the noseband: used to steady or hold down the horse's head. See illus. under
  2. a similar device that divides at the chest into two branches, each ending in a ring through which the reins pass.
  3. a stay for a jib boom or spike bowsprit.
  4. a system of gambling in which the stakes are doubled or otherwise raised after each loss.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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