资料来源 : pyDict

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资料来源 : Webster's Revised Unabridged Dictionary (1913)

Circumferential \Cir*cum`fer*en"tial\, a. [LL.
   circumferentialis.]
   Pertaining to the circumference; encompassing; encircling;
   circuitous. --Parkhurst.

资料来源 : WordNet®

circumferential
     adj : lying around or just outside the edges or outskirts;
           "circumferential highways around cities"
     n : a road that takes traffic around the edge of a town [syn: {bypass},
          {ring road}]