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单词 periphery
释义 periphery
 /peuh rif"euh ree/,  n.  ,  pl.   peripheries.
  1. the external boundary of any surface or area.
  2. the external surface of a body.
  3. the edge or outskirts, as of a city or urban area.
  4. the relatively minor, irrelevant, or superficial aspects of the subject in question: The preliminary research did not, of course, take me beyond the periphery of my problem.
  5.  Anat.   the area in which nerves end.
 [1350-1400; < LL peripheria < Gk periphéreia circumference, lit., a bearing round, equiv. to peri- PERI- + phér(ein) to BEAR1 + -eia -Y3; r. ME periferie < ML periferia, var. sp. of LL peripheria]
 Syn. 1. circumference, perimeter.
 Ant. 1, 2. center.
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