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1.A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone or by the locus of points equidistant from a fixed line and a fixed point not on the line. 2. A guys dick. Term ushually used in math class when working on Parabola's on the graphing calculator and used in funny situations with the math teacher, Mr.Zobel and surounding boys.
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