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1. One in favor of outlawing the manufacture and sale of alcoholic beverages.
2. often Prohibitionist A member or supporter of the Prohibition Party.
(Government, Politics & Diplomacy) (sometimes capital) a person who favours prohibition, esp of alcoholic beverages
pro•hi•bi•tion•ist(ˌproʊ əˈbɪʃ ə nɪst)
1. a person who supports prohibition.
2. (cap.) a member of the Prohibition Party.