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4 definitions found

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

 tetragon
 四角形

From: Taiwan MOE computer dictionary

 tetragon
 四邊形

From: Webster's Revised Unabridged Dictionary (1913)

 Tet·ra·gon n.
 1. Geom. A plane figure having four sides and angles; a quadrangle, as a square, a rhombus, etc.
 2. Astrol. An aspect of two planets with regard to the earth when they are distant from each other ninety degrees, or the fourth of a circle.
 

From: WordNet (r) 2.0

 tetragon
      n : a four-sided polygon [syn: quadrilateral, quadrangle]