Definitions for backgammonˈbækˌgæm ən, ˌbækˈgæm-
Random House Webster's College Dictionary
back•gam•monˈbækˌgæm ən, ˌbækˈgæm-(n.)
a game for two persons in which pieces are moved around a board having two tables or parts, and then removed according to throws of the dice.
Origin of backgammon:
1635–45; back2+ gammon, perh. akin to game
a board game for two players; pieces move according to throws of the dice
A board game for two players in which each has 15 stones which move between 24 triangular points according to the roll of a pair of dice; the object is to move all of one's pieces around, and bear them off the board.
A victory in the game when the loser has not borne off a stone, and still has one or more stones in the winner's inner home row or on the bar.
To win at a backgammon game with the opponent having one or more pieces in the winneru2019s inner home row or on the bar.
Origin: Probably from back + , gamen
a game of chance and skill, played by two persons on a "board" marked off into twenty-four spaces called "points". Each player has fifteen pieces, or "men", the movements of which from point to point are determined by throwing dice. Formerly called tables
in the game of backgammon, to beat by ending the game before the loser is clear of his first "table"
The New Hacker's Dictionary
See bignum (sense 3), moby (sense 4), and pseudoprime.