Definition of demarcate verb from the Oxford Advanced Learner's Dictionary

 

demarcate

 verb
verb
BrE BrE//ˈdiːmɑːkeɪt//
 
; NAmE NAmE//ˈdiːmɑːrkeɪt//
 
Verb Forms present simple I / you / we / they demarcate
BrE BrE//ˈdiːmɑːkeɪt//
 
; NAmE NAmE//ˈdiːmɑːrkeɪt//
 
he / she / it demarcates
BrE BrE//ˈdiːmɑːkeɪts//
 
; NAmE NAmE//ˈdiːmɑːrkeɪts//
 
past simple demarcated
BrE BrE//ˈdiːmɑːkeɪtɪd//
 
; NAmE NAmE//ˈdiːmɑːrkeɪtɪd//
 
past participle demarcated
BrE BrE//ˈdiːmɑːkeɪtɪd//
 
; NAmE NAmE//ˈdiːmɑːrkeɪtɪd//
 
-ing form demarcating
BrE BrE//ˈdiːmɑːkeɪtɪŋ//
 
; NAmE NAmE//ˈdiːmɑːrkeɪtɪŋ//
 
 
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demarcate something (formal) to mark or establish the limits of something Plots of land have been demarcated by barbed wire. The police demarcated the city into eighteen geographical divisions. Word Origin early 19th cent.: back-formation from demarcation.
See the Oxford Advanced American Dictionary entry: demarcate