That is still the definition, pretty much.
Main Entry: com·mu·nism
Pronunciation: \ˈkäm-yə-ˌni-zəm, -yü-\
Function: noun
Etymology: French communisme, from commun common
Date: 1840
1 a : a theory advocating elimination of private property b : a system in which goods are owned in common and are available to all as needed
2 capitalized a : a doctrine based on revolutionary Marxian socialism and Marxism-Leninism that was the official ideology of the Union of Soviet Socialist Republics b : a totalitarian system of government in which a single authoritarian party controls state-owned means of production c : a final stage of society in Marxist theory in which the state has withered away and economic goods are distributed equitably d : communist systems collectively
(Merriam-Webster)
Hmmm. Not a mention of Soviets or Chinese.
But please do give me a contact so that I can write to them for a copy of your particular lexicon.
.... BTW, I added a sentence to my last post...
I see.