demarcate

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++de·mar·cate /ˈdiːmɑːkeɪt $ dɪˈmɑːr-/ verb [transitive] formal LIMITto decide or mark the limits of an area, system etc 界定，标明〔一个地区、系统等〕的界线→ See Verb table

Examples from the Corpus

demarcate• Behind it is a raw new settlement, plots of land demarcated by barbed wire.• And so on the City College campus a vague and indistinctly demarcated intellectual struggle assumed, amazingly, the form of melodrama.• It is rather how to demarcate reasonable science from irrational ideologies, such as astrology and racist nationalisms.• The police demarcated the city into eighteen geographical divisions, the gangs and races into thousands.• In any case it would first of all be necessary to demarcate the requisite number of super-constituencies.• The arrowheads demarcate the two antibody positive bands with estimated M r of 43 and 45K.• The dashed lines demarcate the zone of dying cells.• The retained building, says Farrell, performs an urban function in demarcating two distinct zones within the square.Origin demarcate (1800-1900) demarcation