'Congregational' definitions:

Definition of 'congregational'

From: WordNet
adjective
Relating to or conducted or participated in by a congregation; "congregational membership"; "congregational singing"
adjective
Of or pertaining to or characteristic of a Congregational church [syn: Congregational, Congregationalist]

Definition of 'Congregational'

From: GCIDE
  • Congregational \Con`gre*ga"tion*al\, a.
  • 1. Of or pertaining to a congregation; conducted, or participated in, by a congregation; as, congregational singing. [1913 Webster]
  • 2. Belonging to the system of Congregationalism, or to Congregationalist; holding to the faith and polity of Congregationalism; as, a Congregational church. [1913 Webster]