furcate
  (a.)叉形的,分歧的,成枝的(vi.)分叉,分歧
  Fur·cate Fur·ca·ted a.  Forked; branching like a fork; as, furcate twigs.
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  furcate
       v : divide into two or more branches so as to form a fork; "The
           road forks" [syn: branch, ramify, fork, separate]