Fellowship or union of churches by their pastors and delegates; a meeting of the pastors and delegates of a number of congregational churches, for aiding a[nd] supporting each other, and forming an advisory council in ecclesiastical affairs.--Webster. Consociation of churches, is their mutual and solemn agreement to exercise communion in such acts as aforesaid, amongst themselves, with specia[l] reference to those churches, &c.--Result of the Synod, 1662.