ComeconPronunciation: /ˈkɒmɪkɒn/Definition of Comecon an economic association of east European countries founded in 1949 and analogous to the European Economic Community. With the collapse of communism in eastern Europe, the association was dissolved in 1991. Origin:contraction of Council for Mutual Economic AssistanceComecon in other Oxford dictionaries Definition of Comecon in the US English dictionary