In·ter·de·nom·i·na·tion·al a. Occurring between or among, or common to, different denominations; as, interdenominational fellowship or belief.
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  interdenominational
       adj : occurring between or among or common to different churches
             or denominations; "interchurch aid";
             "interdenominational cooperation between Methodists and
             Presbyterians" [syn: interchurch]