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n. 1. The setting or marking of boundaries or limits. 2. A separation; a distinction: a line of demarcation between two rock strata. [Spanish demarcación, from demarcar, to mark boundaries : de-, off (from Latin dē-; see DE-) + marcar, to mark (from Italian marcare, from Old Italian, of Germanic origin; see merg- in the Appendix of Indo-European roots).] |
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