one-armed bandit

English Thesaurus

1. a slot machine that is used for gambling (noun.artifact)

hypernym	:	coin machine, slot machine,
definition	:	a machine that is operated by the insertion of a coin in a slot (noun.artifact)

hyponym	:	fruit machine,
definition	:	a coin-operated gambling machine that produces random combinations of symbols (usually pictures of different fruits) on rotating dials; certain combinations win money for the player (noun.artifact)