Definitions of pyramid

  1. To use, or to deal in, in a pyramiding transaction. See Pyramid, v. i.
  2. ( stock market) a series of transactions in which the speculator increases his holdings by using the rising market value of those holdings as margin for further purchases
  3. To enlarge one's holding or interest in a series of operations on a continued rise or decline by using the profits to buy or sell additional amounts on a margin, as where one buys on a 10% margin 100 shares of stock quoted at 100, holds it till it rises to 105, and then uses the paper profit to buy 50 shares more, etc. The series of operations constitutes a pyramid.
  4. A solid body standing on a triangular, square, or polygonal base, and terminating in a point at the top; especially, a structure or edifice of this shape.
  5. A solid figure contained by a plane rectilineal figure as base and several triangles which have a common vertex and whose bases are sides of the base.
  6. The game of pool in which the balls are placed in the form of a triangle at spot.
  7. Pyramidal.
  8. increase rapidly and progressively step by step on a broad base
  9. arrange or build up as if on the base of a pyramid
  10. use or deal in ( as of stock or commercial transaction) in a pyramid deal
  11. Monuments, such as those of Egypt; a game at billiards.
  12. a polyhedron having a polygonal base and triangular sides with a common vertex
  13. The series of operations involved in pyramiding. See Pyramid, v. i.
  14. A solid body standing on a triangular, square, or polygonal base, having its triangular sides ending in a point at the apex or top.
  15. A solid figure on a triangular, square, or polygonal base, with triangular sides meeting in a point:- pl. " the pyramids" or great monuments of Egypt: a game played on a billiard table.
  16. A solid with rectilinear base and triangular sides meeting at an apex.
  17. A solid having a rectilinear, usually square, base, and with triangular sides meeting an apex.
  18. One of the great anc. structures of Egypt set apart for some sacred or religious use, the base forming a square and facing the four cardinal points, the sides bounded by plane triangles ending at a common point at the vertex; in geom., a solid figure whose sides are plane triangles ending in a common point at the vertex, and whose base may be a triangle, square, & c.
  19. A conical structure, protuberance, eminence ; a piece of the dental apparatus of Echinoids ; parts of brain, temporal bone, vestibule.