1 a the exclusive possession or control of the trade in a commodity or service. b this conferred as a privilege by the State.
2 a a commodity or service that is subject to a monopoly. b a company etc. that possesses a monopoly.
3 (foll. by of, US on) exclusive possession, control, or exercise.
Etymology: L monopolium f. Gk monopolion (as MONO-, poleo sell)
Useful english dictionary. 2012.