pyramid:1
noun1549{ds||1|a|}
- 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
pyramid:2
verb
pyramid
\
circa 1900{ds|i|1||}
- 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
pyramid scheme
noun
pyramid scheme
\
1949
- a usually illegal operation in which participants pay to join and profit mainly from payments made by subsequent participants
Pyramid Lake:g
geographical name
Pyramid Lake
\
- lake 30 miles (48 kilometers) long in northwestern Nevada northeast of Reno
food pyramid
noun
food pyramid
\
1932{ds||1||}
- 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)
renal pyramid
noun
renal pyramid
\
1861
- 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
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