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
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]
demarkationordemarkation
—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]
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.