Demarcation(n.) The act of marking, or of ascertaining and setting a limit; separation; distinction.
Thesaurus Entries
alteration, analysis, anatomization, atomization, ban, bar, barring, blockade, bounding, boycott, change, circling-in, circumscribing, circumscription, contradistinction, debarment, debarring, definition, delimitation, desynonymization, determination, differencing, differentiation, discrimination, disequalization, disjunction, distinction, distinctiveness, distinguishment, diversification, division, embargo, encincture, exception, exclusion, hairsplitting, inadmissibility, inclusion-exclusion, individualization, individuation, injunction, lockout, microscopic distinction, modification, narrowing, nice distinction, nonadmission, nuance, omission, particularization, personalization, preclusion, prohibition, rejection, relegation, repudiation, restriction, segregation, separation, severalization, severance, shade of difference, specialization, specification, subtle distinction, taboo, trichoschistism, variation