pyramids Definition

to speculate (as on a security or commodity exchange) by using paper profits as margin for additional transactions

to increase rapidly and progressively step by step on a broad base

to arrange or build up as if on the base of a pyramid

an ancient massive structure found especially in Egypt having typically a square ground plan, outside walls in the form of four triangles that meet in a point at the top, and inner sepulchral chambers

a structure or object of similar form

a polyhedron having for its base a polygon and for faces triangles with a common vertex

an ecological hierarchy of food relationships in which a chief predator is at the top, each level preys on the next lower level, and usually green plants are at the bottom

a pyramid-shaped depiction of recommended daily servings for different food groups (such as vegetables, grains, dairy products, and meats)

any of the somewhat triangular- or wedge-shaped masses of tissue of the inner medulla region of the kidney that project as the renal papillae into the renal pelvis, and have a striated appearance due to the presence of collecting tubules and collecting ducts