Source : Webster's Revised Unabridged Dictionary (1913)

Consensus \Con*sen"sus\, n. [L. See {Consent}.]
   Agreement; accord; consent.

         That traditional consensus of society which we call
         public opinion.                          --Tylor.

Source : WordNet®

consensus
     n : agreement in the judgment or opinion reached by a group as a
         whole; "the lack of consensus reflected differences in
         theoretical positions"; "those rights and obligations are
         based on an unstated consensus"