demarcate

动词 demarcate:

1. separate clearly and as if by boundaries
2. set, mark, or draw the boundaries of something
   同义词：delimit, delimitate

1. The playing area is demarcated by a white line.
   运动场地以白线为界。

de.mar.cate

v.tr.（及物动词）
de.mar.cat.ed,de.mar.cat.ing,de.mar.cates
To set the boundaries of; delimit.
划分：设置边界；划界
To separate clearly as if by boundaries; distinguish:
区分，区别：清楚地分开，如同划了一条边界一般；区分：
例句：
demarcate categories.
区分类别

来源：
Back-formation from demarcation
源自 demarcation的逆构词

【引伸】
demar.ca.tor
n.（名词）