Definition of demarcation noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌdiːmɑːˈkeɪʃn//
; NAmE NAmE//ˌdiːmɑːrˈkeɪʃn//
[uncountable, countable]
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a border or line that separates two things, such as types of work, groups of people or areas of land It was hard to draw clear lines of demarcation between work and leisure. social demarcations Word Originearly 18th cent.: from Spanish demarcación, from demarcar ‘mark the bounds of’, ultimately of Germanic origin and related to mark. Originally used in the phrase line of demarcation (Spanish línea de demarcación, Portuguese linha de demarcação), the word denoted a line dividing the New World between the Spanish and Portuguese, laid down by the Pope in 1493.
See the Oxford Advanced American Dictionary entry: demarcation