DICT.TW Dictionary Taiwan

 hexa·gram /ˈhɛksəˌgræm/
 六線形;六角星形

 Hex·a·gram n.   A figure of six lines; specif.: (a) A figure composed of two equal triangles intersecting so that each side of one triangle is parallel to a side of the other, and the six points coincide with those of a hexagon. (b) In Chinese literature, one of the sixty-four figures formed of six parallel lines (continuous or broken), forming the basis of the I Ching (Yih King), or “Book of Changes.”
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 hexagram
      n : a regular polygon formed by extending each of the sides of a
          regular hexagon to form two equilateral triangles