Definition of Messalianism in English:

Messalianism

Pronunciation /mɛˈseɪlɪənɪz(ə)m/ /məˈseɪlɪənɪz(ə)m/

noun

Christian Church
  • The doctrines and practices of the Messalians.

Origin

1940s. From Messalian + -ism. Compare German Messalianismus, French messalianisme.