n.1 the act of marking a boundary or limits.
2 the trade-union practice of strictly assigning specific jobs to different unions.
Phrases and idioms:
demarcation dispute an inter-union dispute about who does a particular job.
Derivatives:
demarcate v.tr. demarcator n.
Etymology: Sp. demarcaci{oacute}n f. demarcar mark the bounds of (as DE-, MARK(1))