Search Result for "oligopoly": 
Wordnet 3.0

NOUN (1)

1. (economics) a market in which control over the supply of a commodity is in the hands of a small number of producers and each one can influence prices and affect competitors; 



WordNet (r) 3.0 (2006):

oligopoly
    n 1: (economics) a market in which control over the supply of a
         commodity is in the hands of a small number of producers
         and each one can influence prices and affect competitors