pyramid
n
1 structure with a flat square or triangular base and sloping sides that meet in a point at the top, esp one of those built of stone by the ancient Egyptians as tombs 金字塔(尤指古埃及的).
2 (esp in geometry) solid figure of this shape with a base of three or more sides (尤指幾何學中的)錐體. =>illus at cube 見 cube 插圖.
3 thing or pile of things that has the shape of a pyramid 金字塔形之物或一堆東西
a pyramid of tins in a shop window 商店櫥窗中擺成金字塔形的罐頭.