Definition of Brethrenism in US English:

Brethrenism

noun

  • The religious beliefs and practices of the Plymouth Brethren or other similar groups.

Origin

Mid 19th century; earliest use found in Primitive Church Magazine. From Brethren + -ism.

Pronunciation

Brethrenism

/ˈbrɛðr(ɪ)nɪz(ə)m/