Search Result for "aleatory contract":
Wordnet 3.0

NOUN (1)

1. a contract whose performance by one party depends on the occurrence of an uncertain contingent event (but if it is contingent on the outcome of a wager it is not enforceable); 



WordNet (r) 3.0 (2006):

aleatory contract
    n 1: a contract whose performance by one party depends on the
         occurrence of an uncertain contingent event (but if it is
         contingent on the outcome of a wager it is not enforceable)