oligopolistEtymologyFrom oligopoly + -ist.nounA member of an oligopoly; one of a small number of sellers with undue influence over a market.“But through the oligopoly, charcoal fuel proliferated throughout London's trades and industries. By the 1200s, brewers and bakers, tilemakers, glassblowers, pottery producers, and a range of other craftsmen all became hour-to-hour consumers of charcoal. This only magnified the indispensable nature of the oligopolists.”