Defn: A fall or throw on the back in wrestling.
BACK FIRE Back fire. (a) A fire started ahead of a forest or prairie fire to burn only against the wind, so that when the two fires meet both must go out for lack of fuel. (b) A premature explosion in the cylinder of a gas or oil engine during the exhaust or the compression stroke, tending to drive the piston in a direction reverse to that in which it should travel; also, an explosion in the exhaust passages of such ah engine.
BACK-FIRE
Back"-fire`, v. i.
1. (Engin.)
Defn: To have or experience a back fire or back fires; — said of an internal-combustion engine.
2. Of a Bunsen or similar air-fed burner, to light so that the flame proceeds from the internal gas jet instead of from the external jet of mixed gas and air. — Back"-fir`ing, n.
BACKFRIEND
Back"friend`, n. Etym: [Back,n.or adv. + friend]
Defn: A secret enemy. [Obs.] South.
BACKGAMMON
Back"gam`mon, n. Etym: [Origin unknown; perhaps fr.Dan. bakke tray +
E. game; or very likely the first part is from E.back, adv., and the
game is so called because the men are often set back.]
Defn: 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. Backgammon board , a board for playing backgammon, often made in the form of two rectangular trays hinged together, each tray containing two "tables".