Definition of demarcation in English:

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Pronunciation: /ˌdēmärˈkāSH(ə)n/


1The action of fixing the boundary or limits of something: the demarcation of the maritime border
More example sentences
  • The boundary line of demarcation between the groups was 19 millimeters, or 3/4 inch, with very little overlap.
  • Technical experts on the delimitation and demarcation of the maritime boundary between Namibia and Angola finalised the treaty last year.
  • Along the police demarcation line at 14th Street, people did their best to get closer to the scene.
separation, distinction, differentiation, division, delimitation, definition
1.1A dividing line: a horizontal band that produces a distinct demarcation two inches from the top
More example sentences
  • Thus, while the perceptual line of distinction remains the same for these commentators, the conceptual demarcations made verbally differ in significant ways.
  • He calls instead, in effect, for a return to traditional governance, with its checks and balances and its clear demarcations between officials and politicians.
  • Their demarcations have been blurred by our limited perception and our limited knowledge.



Pronunciation: /diˈmärˌkātər/
Example sentences
  • The heads of council in all the 31 local government areas in the state, he said, have been informed of the arrival of the demarcators and are prepared to accommodate them.
  • Silence is essential here as a demarcator of phrases, allowing each one to hang in the air, etching its self-contained contour in time.
  • Finally, of course, there is a whole lot that occurs in between these great demarcators of our lives - love and death, that is - and I hope I have given some of it dramatic form here.


Early 18th century: from Spanish demarcación, from demarcar 'mark the bounds of', ultimately of Germanic origin and related to mark1. Originally used in the phrase line of demarcation (Spanish linea 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.

For editors and proofreaders

Syllabification: de·mar·ca·tion

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