D defs.my
Entry 2 senses Webster, 1913

Congregational

/kängˌ-grəg-āsh'-ən-əl/ · Con·gre·ga·tion·al · IPA /kɑŋɡɹəˈɡeɪʃənəl/
01 a. Of or pertaining to a congregation; conducted, or participated in, by a congregation; as, congregational singing.
  1. 1.
    Of or pertaining to a congregation; conducted, or participated in, by a congregation; as, congregational singing.
  2. 2.
    Belonging to the system of Congregationalism, or to Congregationalist; holding to the faith and polity of Congregationalism; as, a Congregational church.