verb (used without object)

verb (used with object)

Nearby words

  1. pyoureter,
  2. pyr-,
  3. pyracanth,
  4. pyracantha,
  5. pyralid,
  6. pyramid bet,
  7. pyramid letter,
  8. pyramid of light,
  9. pyramid of medulla oblongata,
  10. pyramid of tympanum

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pyramid

British Dictionary definitions for pyramid



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


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 pyramid



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

Medicine definitions for pyramid




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.