parallelogram
par.al.lel.o.gram \.par-*-'lel-*-.gram\ n [LL or Gk; LL parallelogrammum, fr. Gk parallelogrammon, fr. neut.]of parallelogrammos bounded by parallel lines, fr. paralle-los + gramme- line, fr. graphein to write - more at CARVE : a quadrilateral with opposite sides parallel and equal