pyramid

Definitions

  • the Great Sphinx of GÎzeh Partially Uncovered, And the Pyramid of Khephren
    the Great Sphinx of GÎzeh Partially Uncovered, And the Pyramid of Khephren
  • WordNet 3.6
    • v pyramid increase rapidly and progressively step by step on a broad base
    • v pyramid arrange or build up as if on the base of a pyramid
    • v pyramid use or deal in (as of stock or commercial transaction) in a pyramid deal
    • v pyramid enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts
    • n Pyramid a massive monument with a square base and four triangular sides; begun by Cheops around 2700 BC as royal tombs in ancient Egypt
    • n pyramid (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
    • n pyramid a polyhedron having a polygonal base and triangular sides with a common vertex
    • ***

Additional illustrations & photos:

the Pyramid of MêdÛm the Pyramid of MêdÛm
the Court and The Two StelÆ of The Chapel Adjoining the Pyramid of MêdÛm the Court and The Two StelÆ of The Chapel Adjoining the Pyramid of MêdÛm
Pyramids of Gizeh Pyramids of Gizeh
KhÛÎt, the Great Pyramid of GÎzeh, The Sphinx, And the Temple of The Sphinx KhÛÎt, the Great Pyramid of GÎzeh, The Sphinx, And the Temple of The Sphinx
the Interior of The Great Pyramid the Interior of The Great Pyramid
the Name of Kheops Drawn in Red on Several Blocks Of the Great Pyramid the Name of Kheops Drawn in Red on Several Blocks Of the Great Pyramid
the Pyramid of Khephren the Pyramid of Khephren
Plan of the Pyramid Of Unas Plan of the Pyramid Of Unas

Webster's Revised Unabridged Dictionary
  • Interesting fact: It took approximately 2.5 million blocks to build the Pyramid of Giza, which is one of the Great Pyramids
    • Pyramid (Finance) a fraudulent investment scheme in which the manager promises high profits, but instead of investing the money in a genuine profit-making activity, uses the money from later investors to pay the profits to earlier investors; -- also called pyramid scheme or pyramid operation. This process inevitably collapses when insufficient new investors are available, leaving the later investors with total or near-total losses of their investments. The managers usually blame government regulations or interference for the collapse of the scheme, rather than admit fraud.
    • Pyramid 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.
    • Pyramid (Geom) 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.
    • Pyramid (Billiards) The game of pool in which the balls are placed in the form of a triangle at spot.
    • v. i Pyramid (Speculation) 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. A similar process of reinvesting gains or winnings (as of a gamble), but not involving operation on margin, is called a parlay.
    • v. t Pyramid (Speculation) To use, or to deal in, in a pyramiding transaction. See Pyramid v. i.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Egyptian pyramid builders used to eat a lot of garlic because they thought it would increase their strength
    • n pyramid A massive structure of polygonal, usually square plan, the sides of which slope, each usually in one plane, to a common apex. Pyramids have been erected in different parts of the world, especially in Egypt, where there are numerous groups in different styles of execution and states of preservation. By far the most interesting of these groups is that of Ghizeh, near Cairo, where there are three pyramids of large size, and several smaller ones. All the Egyptian pyramids were built for tombs, and certainly in most cases, if not in all, for royal personages. They are remarkable not only for the great size of many of them, but for the manner in which they were hermetically sealed, there being no external opening of any kind, nor any indication of the place in which the mummy had been deposited; on the contrary, some of them exhibit very ingenious arrangements intended to lead astray those searching for the sepulchral chamber. Everything was planned in their construction to insure permanence, concealment, and security from violation. Of the three great pyramids at Ghizeh, the largest and by far the most important and interesting is the so-called Great Pyramid, in regard to which a very extensive literature exists, and which has frequently been measured and elaborately described. It is the largest work of man's hands in the world, having been originally 481 feet in height, and each of the sides of its very nearly square base measuring on the average nearly 756 feet (9068.8 in., Petrie). It is the only one remaining of the “seven wonders of the world.” Its interior structure is more elaborate than that of any of the other pyramids, and some of the features which it displays are peculiar, and remarkable as showing the desire of the builders that at least one geometrical fact of fundamental importance should be incorporated into the structure. Thus the height of the Great Pyramid bears, with remarkable precision, the same relation to the total length of the four sides of its base that the radius of a circle has to its circumference, and other indications of the π ratio exist in its interior. This and other interesting peculiarities of this pyramid have led various persons, some of whom have been eminent in science, to adopt the view that it was a divinely inspired building, and that the so-called “coffer” contained within the principal sepulchral chamber was intended to serve as a standard of weights and measures and a record of various fundamental facts in geophysics, and not for a sarcophagus. Of the manner in which the huge stones of which this pyramid is built were raised to their present position but little is definitely known, but it is inferred that the work was done without the aid of complicated machinery; that they were shaped — to a very considerable extent at least — by the use of saws of bronze, the teeth of which were gems or hard stones, has been clearly shown by the most recent investigations. The date of the Great Pyramid, which is believed to have been built by or for King Shufu (Cheops) of the fourth dynasty, is variously fixed by Egyptologists at from 2450 to 4235 (b. c.) The latter is the date assigned by Mariette.
    • n pyramid In geometry, a solid contained by a plane polygon as base and other planes meeting in a point. This point is called the vertex of the pyramid; and the planes which meet in the vertex are called the sides, which are necessarily all triangles, having for their bases the sides of the base of the pyramid. Any pyramid is in volume one third of a prism that has the same base and altitude. Pyramids are denominated from the figures of their bases, being triangular, square, pentagonal, etc., according as the base is a triangle, a square, a pentagon, etc.
    • n pyramid In crystallography, a form, in any system but the isometric, bounded by eight, twelve, sixteen, or twenty-four planes, and consisting of two four-, six-, eight-, or twelve-sided pyramids placed base to base. The name is also extended to embrace any form the planes of which intersect all three of the axes; in the monoclinic system it includes only four, and in the triclinic only two planes, being in each case an open form. If the plants intersect the lateral axes at the assumed unit distances, the pyramid is called a unit pyramid; other forms are designated macropyramids, clinopyramids, etc. (see these terms), according to their position. In the tetragonal system a unit pyramid is also called a protopyramid, or pyramid of the first order or series, and a square octahedron formed by pyramidal planes parallel to one of the lateral axes is in distinction called a deuteropyramid or diametral pyramid, or one of the second order or series. These terms are also used in an analogous manner in the hexagonal system.
    • n pyramid In zoology and anatomy, a pyramidal or conical part, structure, or organ; specifically, a mass of longitudinal fibers on each side of the anterior median fissure of the oblongata. See cut under Elasmobranchii.
    • n pyramid The pile of five or six triangular valves covering an opening on the oral surface of the body of a cystic crinoid. The structure is variously interpreted as ovarian or oro-anal.
    • n pyramid In medieval architecture, a pinnacle of quadrangular plan, most commonly acutely pyramidal in form; hence, any similar feature. Compare pyramidion.
    • n pyramid The American columbo, or Indian lettuce, Frasera Carolinensis.
    • n pyramid One of the five large pieces in the dental apparatus of some echinoids.
    • n pyramid A game of pool begun by arranging in a triangle 15 balls, which the various players in turn endeavor to pocket with a single cue-ball. Customarily each ball pocketed counts 1, and the player continues as long as ho makes at each stroke and does not pocket the cue-ball.
    • n pyramid A variety of checkers in which the pieces are arranged in the form of a pyramid.
    • pyramid In stock-dealings on margin, to speculate or continue to speculate on one's profits, that is, to use the profit made on one transaction as margin on a second and the profit on that (if any) as margin on a third, etc.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: The base of the Great Pyramid of Egypt is large enough to cover 10 football fields.
    • n Pyramid pir′a-mid a solid figure on a triangular, square, or polygonal base, with triangular sides meeting in a point:
    • n Pyramid pir′a-mid (pl.) 'the Pyramids,' or great monuments of Egypt: a game played on a billiard-table in which the balls are arranged in pyramid shape
    • ***

Quotations

  • Jim Ferree
    Jim Ferree
    “There are some people who knock the pyramids because they don't have elevators.”
  • Ben Stein
    Ben%20Stein
    “There is no sudden leap into the stratosphere. There is only advancing step by step, slowly and tortuously, up the pyramid towards your goals.”
  • Napoleon Bonaparte
    Napoleon%20Bonaparte
    “From the heights of these pyramids, forty centuries look down on us.”
  • R. Buckminster Fuller
    R.%20Buckminster%20Fuller
    “The pyramids, attached with age, have forgotten the names of their founders.”
  • Franklin D. Roosevelt
    Franklin%20D.%20Roosevelt
    “The forgotten man at the bottom of the economic pyramid.”
  • James Dye
    James Dye
    “Here's what they're doing: All power and wealth is going to the top of a compartmentalized pyramid system and then they plan to rule the entire world.”

Etymology

Webster's Revised Unabridged Dictionary
L. pyramis, -idis, fr. Gr. , , of Egyptian origin: cf. F. pyramide,
Chambers's Twentieth Century Dictionary
L.,—Gr. pyramis, pyramidos; prob. Egypt. pir-em-us. Some connection with Gr. pyr, fire.

Usage

In literature:

The Queens and the "princes of Noph" reposed in smaller pyramids beside the Kings.
"The International Magazine, Volume 2, No. 3, February, 1851" by Various
Most of them are terraced and truncated pyramids.
"Ancient America, in Notes on American Archaeology" by John D. Baldwin
I cannot produce his proof from the Pyramids, and from some caves in Arabia.
"A Budget of Paradoxes, Volume II (of II)" by Augustus de Morgan
The figure is more or less correct; but it is a pyramid that has been broken at its edges by time and by necessity.
"The Quarterly Review, Volume 162, No. 324, April, 1886" by Various
Course, I didn't know anything about the stranger; but I know Pyramid, and his funnybone was fossilized years ago.
"Odd Numbers" by Sewell Ford
There were 5813 pyramid inches, or 5819 British inches, in the height of the pyramid according to the relations already indicated.
"Myths and Marvels of Astronomy" by Richard A. Proctor
In other respects conical tents are erected practically as in the case of pyramidal tents, as explained in par.
"Manual of Military Training" by James A. Moss
On the right of these promenades is the river, on the left the pyramidal hill, of the Cerro de San Cristoval.
"Travels in Peru, on the Coast, in the Sierra, Across the Cordilleras and the Andes, into the Primeval Forests" by J. J. von Tschudi
I found a note in the hall from Sarakoff asking me to come round to the Pyramid Restaurant at eight o'clock to meet a friend of his.
"The Blue Germ" by Martin Swayne
It is in the general shape of the pyramid of Egypt, but more beautiful.
"Flash-lights from the Seven Seas" by William L. Stidger
A party from the ship, having its headquarters at Shepheard's Hotel, was formed to visit Cairo and the Pyramids.
"Reminiscences of Queensland" by William Henry Corfield
The very exceptions to the sweeping and comprehensive possessions of the seed of Jacob are pyramidal witnesses to the same.
"The Lost Ten Tribes, and 1882" by Joseph Wild
Wintry winds in Cairo, which raised clouds of dust and sand, prevented me from seeing the pyramids until after my return from Luxor.
"The Critic in the Orient" by George Hamlin Fitch
This sacred figure is as remarkable as the Sphinx, which presides so placidly at the feet of the great Pyramids.
"Foot-prints of Travel" by Maturin M. Ballou
I moved amidst the huge pyramidal trunks of the cypresses, whose thick umbellated foliage, meeting overhead, shut out both sun and sky.
"The Quadroon" by Mayne Reid
The pyramids were tombs.
"Museum of Antiquity" by L. W. Yaggy
The pyramids of Ghizeh are situated on a platform of rock, about 150 feet above the level of the desert.
"The Contemporary Review, Volume 36, September 1879" by Various
It is a pyramid, young man!
"Astounding Stories of Super-Science January 1931" by Various
FRONT PROJECTIONS OF THE PYRAMIDS.
"The Mechanism of the Human Voice" by Emil Behnke
Reference has already been made to the god Quetzalcoatl, in whose honor a huge pyramid was erected here.
"The Story of Extinct Civilizations of the West" by Robert E. Anderson
***

In poetry:

I drew to a violet-sprinkled spot,
Where day and night a pyramid keeps
Uplifted its white hand, and said,
"'Tis there he sleeps."
"At A House In Hampstead Sometime The Dwelling Of John Keats" by Thomas Hardy
But there are those so wise and fine
There is no sun unless they shine;
And if they are not at the top
Will find the Pyramids a flop.
"‘ Frustration’" by A P Herbert
Hark! Comes there from the Pyramids,
And from Siberia's wastes of snow,
And Europe's fields, a voice that bids
The world he awed to mourn him?—No;—
"The Exile At Rest" by John Pierpont
When other eyes shall see the vision
Of Rotheck's pyramid of snow,
And watch the roseate hues elysian
Creep over it at evening's glow,
As o'er its crest the sun sinks low.
"My Garden" by John Lawson Stoddard
Spirit of Wisdom and of Power!
The works of Egypt's mightiest hour,—
The pyramid and vaulted tomb,—
The peerless fane of David's son,
The giant towers of Babylon,—
Old works of grandeur and of gloom,—
"Hymns and Odes for Charity Occasions IX" by John Pierpont
Two favourites hath Time—the pyramids of Nile,
And the old mystic temples of our own dear isle;
As the breeze o'er the seas, where the halcyon has its nest,
Thus Time o'er Egypt's tombs and the temples of the West!
"The Pillar Towers of Ireland" by Denis Florence MacCarthy

In news:

Rebecca Jo Cullen and Daniel James Birch are engaged to be married on Sept 8, 2012, at Pyramid Lake.
With that said, will Black Pyramid be in your closet.
Charles Ponzi, the father of pyramid schemes.
Enlarge Chris Clark chrisclark@mlive.com "ArtPrize The Musical" by Corey Ruffin, an ArtPrize performance entry at The Pyramid Scheme.
Tuesday about 3PM, A Washoe County detective in an unmarked car noticed an upset woman outside a business on Pyramid Way.
Mayas complain of ritual ban at pyramids, temples.
So the whole pyramid thing… An Assistant Dean turned me on to them.
Pyramid scheme seemed perfectly innocent.
Functional training gets top billing in exercise pyramid.
Mariesii glows white, and a tree of Crispii is a pyramid of green suffused with a glowing yellow surface.
Competitors build and take down pyramids with 12 specially designed cups called Speed Stacks.
Mystery of ' Headless Pyramid' solved.
In June, the Syracuse Industrial Development Agency approved a deal between the City of Syracuse and Pyramid.
Pyramid Mattress 'Your holiday mattress store.
Calendars, Pyramids and Numbers: The Mayas Had it All.
***

In science:

Now, given ǫ > 0, we define a pyramid-shaped, ǫ-sloped function on Λn by pn (x) = φu (x) + nδf ( x kn ).
Random Surfaces
It is also easy to see that an elementary matrix Ei,j has a non-negative degree in this grading iff the label i is not located strictly to the left of the label j in the pyramid P .
Good Gradings of Simple Lie Algebras
Endomorphisms Ei,j map the j th basis vector of Fn to the ith basis vector, and we represent Ei,j by the arrow, which connects the corresponding centers of the boxes of the pyramid P .
Good Gradings of Simple Lie Algebras
This semisimple element, as is not difficult to see, corresponds to the grading determined by the pyramid obtained from the symmetric pyramid P (p) by shifting to the left by 1 as one whole all rows starting from ti−1 + 1 up.
Good Gradings of Simple Lie Algebras
Conversely the sequence of nonzero column heights of a pyramid P determined by an even grading will be an unimodal sequence of size n.
Good Gradings of Simple Lie Algebras
Given a symplectic partition p of 2n, construct a symplectic pyramid SP (p) as follows.
Good Gradings of Simple Lie Algebras
For each symplectic partition p we construct the set SPyr(p) of symplectic pyramids as follows.
Good Gradings of Simple Lie Algebras
We fill by basis vectors the boxes of a symplectic pyramid and define the corresponding nilpotent element in the same way as for SP (p).
Good Gradings of Simple Lie Algebras
Define h(p) ∈ soN , using the pyramid OP (p) in the same way as for spN .
Good Gradings of Simple Lie Algebras
Under these assumptions we obtain 2c(p)−1 q orthogonal pyramids, which form the set OP yr(p).
Good Gradings of Simple Lie Algebras
Z, we construct an orthogonal pyramid as in the previous case.
Good Gradings of Simple Lie Algebras
In Section 3.1, we first present a useful fundamental relation for the generating function of random walks, which is then identified with that of a particular class of heaps of dimers called pyramids.
Integrability of graph combinatorics via random walks and heaps of dimers
Fig. 9: A schematic representation (first line) of the equality (3.2) between generating functions Za,b (2k − 1) for walks from a to b with 2k − 1 steps and Ha,b (k) for pyramids of base [a, b] with a total of k dimers.
Integrability of graph combinatorics via random walks and heaps of dimers
In the half-pyramid, each dimer in the stripe i (including the dimers of the right pro jection) receives a weight Ri .
Integrability of graph combinatorics via random walks and heaps of dimers
The equivalence class C (H) is generated by distributing in all possible ways these dimers either in the hard-dimer configuration or in the half-pyramid.
Integrability of graph combinatorics via random walks and heaps of dimers
***