- (n.) The series of operations involved in pyramiding. See Pyramid, v. i.
- (v.t.) To use or to deal in, in a pyramiding transaction. See Pyramid, v. i.
- (v.i.) 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.
- (n.) The game of pool in which the balls are placed in the form of a triangle at spot.
- (n.) 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.
- (n.) 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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). pyramid. Retrieved September 25, 2026, from http://smartdefine.org/pyramid/definitions/2051323 |
| Chicago | Webster's. 2011. "pyramid" http://smartdefine.org/pyramid/definitions/2051323 (accessed September 25, 2026). |
| Harvard | Webster's 2011, pyramid, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/pyramid/definitions/2051323>. |
| MLA | Webster's. "pyramid" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/pyramid/definitions/2051323> |