de·mar·ca·tion

[dee-mahr-key-shuhn]
noun
1.
the determining and marking off of the boundaries of something.
2.
separation by distinct boundaries: line of demarcation.
Also, de·mar·ka·tion.


Origin:
1720–30; Latinization of Spanish demarcación (in linea de demarcación line of demarcation, dividing the world between Spain and Portugal) derivative of demarcar to mark out the bounds of, equivalent to de- de- + marcar < Italian marcare < Germanic; see mark1, -ation

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Cite This Source Link To demarcation
00:10
Demarcation is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a chattering or flighty, light-headed person.
Collins
World English Dictionary
demarcation or demarkation (ˌdiːmɑːˈkeɪʃən) [Click for IPA pronunciation guide]
 
n
1.  the act of establishing limits or boundaries
2.  a limit or boundary
3.  a.  a strict separation of the kinds of work performed by members of different trade unions
 b.  (as modifier): demarcation dispute
4.  separation or distinction (often in the phrase line of demarcation)
 
[C18: Latinized version of Spanish demarcación, from demarcar to appoint the boundaries of, from marcar to mark, from Italian marcare, of Germanic origin; see mark1]
 
demarkation or demarkation
 
n
 
[C18: Latinized version of Spanish demarcación, from demarcar to appoint the boundaries of, from marcar to mark, from Italian marcare, of Germanic origin; see mark1]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

demarcation
c.1752, from Sp. linea de demarcacion, or Port. linha de demarcaçao, line laid down by the Pope, May 4, 1493, dividing the New World between Spain and Portugal on a line 100 leagues west of the Cape Verde Islands. Applied from 1801 to other lines dividing regions.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
The key demarcation points in that relationship are the equinoxes and solstices.
Note their smooth borders and clear demarcation from the surrounding skin.
These concerns stem from an overly simple demarcation between science and
  nonscience.
The demarcation of their territory, however, could not keep out the modern
  world.
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