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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 oc·ta·gon /ˈɑktəˌgɑn/
 八邊形,八角形,八角堂

From: Webster's Revised Unabridged Dictionary (1913)

 Oc·ta·gon n.
 1. Geom. A plane figure of eight sides and eight angles.
 2. Any structure (as a fortification) or place with eight sides or angles.
 Regular octagon, one in which the sides are all equal, and the angles also are all equal.
 

From: WordNet (r) 2.0

 octagon
      n : an eight-sided polygon