duopoly
noun[C,usually singular]
ECONOMICSuk/djuˈɒpəli/us/duˈɒpəli/pluralduopoliesasituationin which only twocompaniescontrolall thebusinessin aparticularindustry:
Themergerwouldclearlycreatea duopoly in theindustry.
the twocompaniesthatcontrolall thebusinessin aparticularindustry:
It wastheirmagazinethat washardesthitby the duopoly'sfallingout.