Definition of delimitation in US English:

delimitation

noun

  • 1The action of fixing the boundary or limits of something.

    ‘the government is yet to pass legislation on delimitation of constituencies in the province’
    1. 1.1 A dividing line or boundary.
      ‘people raised questions on the new delimitations’

Pronunciation

delimitation

/dəˌlɪməˈteɪʃ(ə)n//dəˌliməˈtāSH(ə)n/