pyramid

[pir-uh-mid]
|

noun

verb (used without object)

verb (used with object)


Origin of pyramid

1350–1400; < Latin pȳramid- (stem of pȳramis) < Greek pȳramís; replacing Middle English pyramis < Latin, as above
Related formspyr·a·mid·like, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


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British Dictionary definitions for pyramids

pyramid

noun

a huge masonry construction that has a square base and, as in the case of the ancient Egyptian royal tombs, four sloping triangular sides
an object, formation, or structure resembling such a construction
maths a solid having a polygonal base and triangular sides that meet in a common vertex
crystallog a crystal form in which three planes intersect all three axes of the crystal
anatomy any pointed or cone-shaped bodily structure or part
finance a group of enterprises containing a series of holding companies structured so that the top holding company controls the entire group with a relatively small proportion of the total capital invested
mainly US the series of transactions involved in pyramiding securities
(plural) a game similar to billiards with fifteen coloured balls

verb

to build up or be arranged in the form of a pyramid
mainly US to speculate in (securities or property) by increasing purchases on additional margin or collateral derived from paper profits associated with high prices of securities and property in a boom
finance to form (companies) into a pyramid
Derived Formspyramidal (pɪˈræmɪdəl), pyramidical or pyramidic, adjectivepyramidally or pyramidically, adverb

Word Origin for pyramid

C16 (earlier pyramis): from Latin pyramis, from Greek puramis, probably from Egyptian
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for pyramids

pyramid

n.

1550s (earlier in Latin form piramis, late 14c.), from French pyramide (Old French piramide "obelisk, stela," 12c.), from Latin pyramides, plural of pyramis "one of the pyramids of Egypt," from Greek pyramis (plural pyramides) "a pyramid," apparently an alteration of Egyptian pimar "pyramid." Financial sense is from 1911. Related: Pyramidal.

Online Etymology Dictionary, © 2010 Douglas Harper

pyramids in Medicine

pyramid

[pĭrə-mĭd]

n.

A solid figure with a polygonal base and triangular faces that meet at a common point.
A structure or part shaped like a pyramid.
Related formspy•rami•dal (pĭ-rămĭ-dl) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

pyramids in Culture

pyramids

A group of huge monuments in the desert of Egypt (see also Egypt), built as burial vaults for ancient Egyptian kings. The age of pyramid building in Egypt began about 2700 b.c. (See under “World History to 1550.”)

pyramids

A group of huge monuments in the Egyptian desert, built as burial vaults for the pharaohs and one of the Seven Wonders of the Ancient World. The pyramids have square bases and four triangular faces. Pyramid building began in Egypt (see also Egypt) about 2700 b.c. and required vast amounts of slave labor.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.