Pronunciation: (bās'bôl"),[key] —n. 1. a game of ball between two nine-player teams played usually for nine innings on a field that has as a focal point a diamond-shaped infield with a home plate and three other bases, 90 ft. (27 m) apart, forming a circuit that must be completed by a base runner in order to score, the central offensive action entailing hitting of a pitched ball with a wooden or metal bat and running of the bases, the winner being the team scoring the most runs.
2. the ball used in this game, being a sphere approximately 3 in. (7 cm) in diameter with a twine-covered center of cork covered by stitched horsehide.
3. Cards.a variety of five-card or seven-card stud poker in which nines and threes are wild and in which threes and fours dealt face up gain the player either penalties or privileges.