Source : Webster's Revised Unabridged Dictionary (1913)

Synod \Syn"od\ (s[i^]n"[u^]d), n. [L. synodus, Gr. sy`nodos a
   meeting; sy`n with + "odo`s a way; cf. AS. sino[eth],
   seno[eth], F. synode, both from the Latin.]
   1. (Eccl. Hist.) An ecclesiastic council or meeting to
      consult on church matters.

   Note: Synods are of four kinds: 1. General, or ecumenical,
         which are composed of bishops from different nations;
         -- commonly called general council. 2. National,
         composed of bishops of one nation only. 3. Provincial,
         in which the bishops of only one province meet; --
         called also convocations. 4. Diocesan, a synod in which
         the bishop of the diocese or his representative
         presides. Among Presbyterians, a synod is composed of
         several adjoining presbyteries. The members are the
         ministers and a ruling elder from each parish.

   2. An assembly or council having civil authority; a
      legislative body.

            It hath in solemn synods been decreed, Both by the
            Syracusians and ourselves, To admit no traffic to
            our adverse towns.                    --Shak.

            Parent of gods and men, propitious Jove! And you,
            bright synod of the powers above.     --Dryden.

   3. (Astron.) A conjunction of two or more of the heavenly
      bodies. [R.] --Milton.

Source : WordNet®

synod
     n : a council convened to discuss ecclesiastical business