ˌ ̷ ̷ ̷ ̷ˈgäpsənē noun
( -es )
Etymology: olig- + Greek opsōnia purchase of victuals, catering — more at duopsony
: a market situation in which each of a limited number of buyers is strong enough to influence the market but not strong enough to ignore the reaction to such influence by his competitors — compare duopsony , monopsony