Longman Dictionary of Contemporary English homepage

Date: 1700-1800
Language: Spanish
Origin: demarcación, from marcar 'to mark'

demarcation

 noun
     
de‧mar‧ca‧tion [uncountable] formal
1 the point at which one area of work, responsibility etc ends and another begins
demarcation between
traditional lines of demarcation between medicine and surgery
2 the process of deciding on or marking the border between two areas of land
demarcation of
the exact demarcation of the north-south boundary
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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