a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms
prismoid详细解释
pris.moid n.（名词）A prismatoid having polygons with the same number of sides as bases, and faces that are parallelograms or trapezoids.平截头棱椎体：以边数相同的平面多边形为底面的，各侧面为平行四边形或不规则四边形的拟柱体 【引伸】 prismoi.dal
