/dooh op"seuh nee, dyooh-/ , n. , pl. duopsonies .
the market condition that exists when there are only two buyers. Cf. monopsony, oligopsony .
[ DU(O)- + -opsony opsonía purchasing of food, equiv. to óps ( on ) viands + on ( eîsthai ) to buy + -ia -Y 3 ]