Source : Webster's Revised Unabridged Dictionary (1913)

Ecumenic \Ec`u*men"ic\, Ecumenical \Ec`u*men"ic*al\, a. [L.
   oecumenicus, Gr. ? (sc. ?) the inhabited world, fr. ? to
   inhabit, from ? house, dwelling. See {Economy}.]
   General; universal; in ecclesiastical usage, that which
   concerns the whole church; as, an ecumenical council.
   [Written also {[oe]cumenical}.]

   {Ecumenical Bishop}, a title assumed by the popes.

   {Ecumenical council}. See under {Council}.