Definition of Muggletonianism in English:

Muggletonianism

noun

historical
  • The doctrines or practice of the Muggletonians.

Origin

Late 19th century; earliest use found in The Catholic World. From Muggletonian + -ism.

Pronunciation

Muggletonianism

/ˌmʌɡlˈtəʊnɪənɪz(ə)m/