Definition of missionization in US English:

missionization

(also missionisation)

noun

  • The practice of missionary work; especially the introduction (or imposition) of Christian culture by missionaries.

Origin

Late 19th century; earliest use found in Path. From missionize + -ation.

Pronunciation

missionization

/ˌmɪʃənʌɪˈzeɪʃn/