/ Dictionary / Index D duopsony: Meaning and Definition of Find definitions for: du•op•so•ny Pronunciation: (d-op'su-nē, dy-), [key] — pl. -nies. the market condition that exists when there are only two buyers. Cf. monopsony, oligopsony. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. duopoly duotone Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language