or de·mar·ka·tion

[ dee-mahr-key-shuh n ]
/ ˌdi mɑrˈkeɪ ʃən /


the determining and marking off of the boundaries of something.
separation by distinct boundaries: line of demarcation.

Origin of demarcation

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for demarcation

British Dictionary definitions for demarcation



/ (ˌdiːmɑːˈkeɪʃən) /


the act of establishing limits or boundaries
a limit or boundary
  1. a strict separation of the kinds of work performed by members of different trade unions
  2. (as modifier)demarcation dispute
separation or distinction (often in the phrase line of demarcation)

Word Origin for 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 mark 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012