D defs.my
Entry 2 senses Webster, 1913

Congregationalism

· Con·gre·ga·tion·al·ism · IPA /ˌkɑŋɡɹəˈɡeɪʃənəˌlɪzəm/
01 n. That system of church organization which vests all ecclesiastical power in the assembled brotherhood of each local church.
  1. 1.
    That system of church organization which vests all ecclesiastical power in the assembled brotherhood of each local church.
  2. 2.
    The faith and polity of the Congregational churches, taken collectively.