The definition of a lotto is a game of chance where you or a machine select numbers and you win a prize if the numbers are picked in a random drawing.
(noun)The PowerBall is an example of a lotto.
See lotto in Webster's New World College Dictionary
noun
Origin: It < Fr lot < MDu: see lot
See lotto in American Heritage Dictionary 4
noun pl. lot·tos
Origin:
Origin: Italian
Origin: and French loto
Origin: , both from French lot, lot
Origin: , from Old French
Origin: , from Frankish *lot
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