pyramid
1. a huge masonry construction that has a square base and, as in the case of the ancient Egyptian royal tombs, four sloping triangular sides
2. Maths a solid having a polygonal base and triangular sides that meet in a common vertex
3. Crystallog a crystal form in which three planes intersect all three axes of the crystal
4. Anatomy any pointed or cone-shaped bodily structure or part
5. a game similar to billiards with fifteen coloured balls
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Pyramid
A polyhedron with a polygonal base and triangular faces meeting at a single common apex.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
Pyramid
Ceppo, Lichtstock, Lightstock, Weihnachtspyramide
A Christmas pyramid is a triangular or pyramidal structure made up of shelves of unequal lengths joined along their outside edges by supporting posts or poles. Christmas decorations are displayed on each shelf, with the lowest and longest shelf often reserved for a Nativity scene. Family and friends may arrange apples, cookies, nuts, small gifts, evergreen branches, Christmas cards, stars, figurines, candles, flags, and other embellishments across the other shelves according to their taste. A star or pinecone often adorns the apex of the pyramid. In one variation of the pyramid popular in central Europe several centuries ago, a propeller sits atop a pyramid shaped like a tall, round, layer cake. A central axis pole supporting the propeller runs through each of three circular shelves. Rising heat currents from the candles on the shelves below cause the propeller to spin, which in turn causes the axis to spin and the layers of the pyramid to rotate.
Several authors view the candles as the most important ornaments on the pyramid and suggest that the decorated pyramid serves as an elaborate candlestick. Indeed, one German name for this structure, Lichtstock, means "light stick." Some authorities maintain, however, that the Lichtstock was a simple pole covered with evergreens bearing a single candle. They offer Weihnachtspyramide as the German term for the Christmas pyramid. The Italians call the pyramid a ceppo, which means "log." Some explain this odd name by noting that the ceppo, with its glowing candles, replaced the burning of the Yule log in Italy.
The Christmas pyramid originated in Germany and became a popular Christmas tradition by the seventeenth century. In early times, the pyramid was hung from the ceiling. Families garnished their pyramids with candles and figurines, for example, of soldiers and angels. Along with the paradise tree, the pyramid stands as a possible ancestor to the modern Christmas tree.
From Germany the use of pyramids spread to central Europe, Italy, and England. German settlers brought the custom to America. As early as 1747 Moravian communities in Pennsylvania were celebrating Christmas with decorated pyramids. By contrast, the first American Christmas tree dates only as far back as the early 1800s (see also America, Christmas in Nineteenth-Century; Bethlehem, Pennsyvania, Christmas in).
In Germany the Christmas tree began to replace the pyramid in the seventeenth and eighteenth centuries. The exploding popularity of the Christmas tree in the nineteenth century contributed to the declining use of the Christmas pyramid in many countries. The Italians maintained the tradition of the Christmas ceppo, perhaps because they never adopted the Christmas tree.
In Erzgebirge, a region of Germany famous for its mining industry, miners began carving fancy wooden pyramids in the nineteenth century. The miners had already developed a tradition of carving wooden candlesticks in the shape of miners and angels. The miners represented the men of the region, while the angels represented the women. Families placed groupings of these candlesticks in their windows at Christmas time, displaying one miner for every boy child in the family and one angel for every girl child. Similar wooden figurines eventually began to populate the shelves of their Christmas pyramids. Miners, Christmas trees, and scenes from the Nativity story, whirled round and round on the propeller-topped shelves. Today villages in Erzgebirge build large, motorized community pyramids, vying with one another to see which locale produces the most impressive display.
Further Reading
Del Re, Gerard, and Patricia Del Re. The Christmas Almanack. Garden City, N.Y.: Doubleday, 1979. Foley, Daniel J. The Christmas Tree. Philadelphia, Pa.: Chilton Company, 1960. Russ, Jennifer M. German Festivals and Customs. London, England: Oswald Wolff, 1982. Sterbenz, Carol Endler, and Nancy Johnson. The Decorated Tree. New York: Harry N. Abrams, 1982.
Web Site
The German Embassy in Washington, D.C., offers a page describing the Christmas pyramid on its web site at: ch_15.html
A Christmas pyramid is a triangular or pyramidal structure made up of shelves of unequal lengths joined along their outside edges by supporting posts or poles. Christmas decorations are displayed on each shelf, with the lowest and longest shelf often reserved for a Nativity scene. Family and friends may arrange apples, cookies, nuts, small gifts, evergreen branches, Christmas cards, stars, figurines, candles, flags, and other embellishments across the other shelves according to their taste. A star or pinecone often adorns the apex of the pyramid. In one variation of the pyramid popular in central Europe several centuries ago, a propeller sits atop a pyramid shaped like a tall, round, layer cake. A central axis pole supporting the propeller runs through each of three circular shelves. Rising heat currents from the candles on the shelves below cause the propeller to spin, which in turn causes the axis to spin and the layers of the pyramid to rotate.
Several authors view the candles as the most important ornaments on the pyramid and suggest that the decorated pyramid serves as an elaborate candlestick. Indeed, one German name for this structure, Lichtstock, means "light stick." Some authorities maintain, however, that the Lichtstock was a simple pole covered with evergreens bearing a single candle. They offer Weihnachtspyramide as the German term for the Christmas pyramid. The Italians call the pyramid a ceppo, which means "log." Some explain this odd name by noting that the ceppo, with its glowing candles, replaced the burning of the Yule log in Italy.
The Christmas pyramid originated in Germany and became a popular Christmas tradition by the seventeenth century. In early times, the pyramid was hung from the ceiling. Families garnished their pyramids with candles and figurines, for example, of soldiers and angels. Along with the paradise tree, the pyramid stands as a possible ancestor to the modern Christmas tree.
From Germany the use of pyramids spread to central Europe, Italy, and England. German settlers brought the custom to America. As early as 1747 Moravian communities in Pennsylvania were celebrating Christmas with decorated pyramids. By contrast, the first American Christmas tree dates only as far back as the early 1800s (see also America, Christmas in Nineteenth-Century; Bethlehem, Pennsyvania, Christmas in).
In Germany the Christmas tree began to replace the pyramid in the seventeenth and eighteenth centuries. The exploding popularity of the Christmas tree in the nineteenth century contributed to the declining use of the Christmas pyramid in many countries. The Italians maintained the tradition of the Christmas ceppo, perhaps because they never adopted the Christmas tree.
In Erzgebirge, a region of Germany famous for its mining industry, miners began carving fancy wooden pyramids in the nineteenth century. The miners had already developed a tradition of carving wooden candlesticks in the shape of miners and angels. The miners represented the men of the region, while the angels represented the women. Families placed groupings of these candlesticks in their windows at Christmas time, displaying one miner for every boy child in the family and one angel for every girl child. Similar wooden figurines eventually began to populate the shelves of their Christmas pyramids. Miners, Christmas trees, and scenes from the Nativity story, whirled round and round on the propeller-topped shelves. Today villages in Erzgebirge build large, motorized community pyramids, vying with one another to see which locale produces the most impressive display.
Further Reading
Del Re, Gerard, and Patricia Del Re. The Christmas Almanack. Garden City, N.Y.: Doubleday, 1979. Foley, Daniel J. The Christmas Tree. Philadelphia, Pa.: Chilton Company, 1960. Russ, Jennifer M. German Festivals and Customs. London, England: Oswald Wolff, 1982. Sterbenz, Carol Endler, and Nancy Johnson. The Decorated Tree. New York: Harry N. Abrams, 1982.
Web Site
The German Embassy in Washington, D.C., offers a page describing the Christmas pyramid on its web site at: ch_15.html
Encyclopedia of Christmas and New Year's Celebrations, 2nd ed. © Omnigraphics, Inc. 2003
pyramid
[′pir·ə‚mid] (crystallography)
An open crystal having three, four, six, eight, or twelve nonparallel faces that meet at a point.
(mathematics)
A polyhedron with one face a polygon and all other faces triangles with a common vertex.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
pyramid
A massive funerary structure of stone or brick with a square base and four sloping triangular sides meeting at the apex; used mainly in ancient Egypt. In Central America stepped pyramids formed the bases of temples; in India some temples had the shape of truncated pyramids.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
Fujitsu Siemens
(Fujitsu Siemens Computers, Inc. (USA), Milpitas, CA) The joint venture of Fujitsu Computers (Europe) and Siemens Computer Systems in 1999. In 2009, Fujitsu bought out Siemen's share and renamed the company Fujitsu Technology Solutions. See Fujitsu.In the U.S., Siemens Computer Systems evolved out of Pyramid Technology, which was founded in 1981 by former HP employees. In 1995, Siemens Nixdorf acquired Pyramid, and three years later split the computer operation into Siemens Computer Systems and moved retail and banking systems to an independent company, Wincor Nixdorf (www.wincor-nixdorf.com). Over the years, the company introduced several product lines, including the Nile, Reliant and RM families, many of which included a high-speed mesh interconnect for symmetric multiprocessing (SMP). See Siemens.
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| Multiprocessing Architecture |
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| This earlier Reliant 1000 from Siemens used a high-speed mesh interconnect, providing an unusual degree of flexibility and scalability. (Image courtesy of Fujitsu Siemens Computers.) |
Copyright © 1981-2025 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
Pyramid
(dreams)This ancient and powerful symbol has general meaning for all and specific meaning for the dreamer. It represents the coming together of the world of man with that of God; the material with the spiritual. The purpose of the pyramids was to bury the dead and to assist them into reaching eternity. In this way, the pyramids were holy places and their architecture and mysticism continues to amaze and to intrigue us. In order to understand its symbolism; consider your current accomplishments and breakthroughs. If you accomplished a personal goal and feel a sense of wholeness, this dream symbol may be an affirmation of those feelings. The pyramid could also represent larger goals and deepest strivings. Whether they represent fulfilled or incomplete goals, a pyramid seems to be a very positive dream symbol.
Bedside Dream Dictionary by Silvana Amar Copyright © 2007 by Skyhorse Publishing, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
Pyramid
a polyhedron with one face a polygon and the other faces triangles with a common vertex. The polygon, which may also be a triangle, is called the base, the remaining faces are called lateral faces, and the common vertex is called the vertex of the pyramid. Examples of pyramids are illustrated in Figure 1.
Figure 1
Pyramids are classified as triangular, quadrangular, and so on according to the number of their lateral faces. The line segment drawn perpendicularly from the vertex of the pyramid to the plane of the base is called the altitude of the pyramid, as is the length of the segment. The volume of a pyramid is given by the formula
where B is the area of the base and h is the altitude. A pyramid is said to be regular (see Figure l,b) if its base is a regular polygon and its altitude passes through the center of the base. The lateral faces of a regular pyramid are congruent isosceles triangles. The altitude of each of these triangles is called a regular pyramid’s slant height, or apothem (the projection of the slant height on the plane of the base is the apothem of the base). If a pyramid is cut into two parts by a plane parallel to its base, there result a pyramid similar to the original pyramid and a truncated pyramid.
Pyramid
a massive architectural structure with a square base and sloping sides meeting at an apex. Pyramids, which may be stepped or regular, are characteristic of ancient times. Pyramids were the tombs of the Egyptian pharaohs of the Old and Middle Kingdoms (from roughly 2800 to 1700 B.C.). The structures symbolized the superhuman greatness of the ruler. The largest Egyptian pyramid, that of Cheops at Gizeh, is 146.6 m high and was constructed in the 28th century B.C. In Central and South America, pyramidal structures, which often served as foundations for temples and were associated with cosmologic cults, were erected in the first millennium B.C. In ancient Roman and later in European art, the pyramidal motif was often used in memorial structures.
REFERENCES
Lauer, J. P. Zagadki egipetskikh piramid. Moscow, 1966. (Translated from French.)Kink, Kh. A. Kak stroilis’ egipetskie piramidy. Moscow, 1967.
Mikhailovskii, K. Piramidy i maslaby. Warsaw, 1973.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.