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[yoo-klid] /ˈyu klɪd/
flourished c300 b.c, Greek geometrician and educator at Alexandria.
a city in NE Ohio, near Cleveland. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for Euclid
Contemporary Examples
Historical Examples
  • "I spent two years at Euclid College," answered Walter, with conscious pride.

  • His conclusions were as infallible as so many propositions of Euclid.

    A Study In Scarlet Arthur Conan Doyle
  • Euclid introduced the subject by the proposition that, if alternate angles are equal, the lines are parallel.

    The Teaching of Geometry David Eugene Smith
  • He left commentaries on Plato and on part of Euclid's Elements.

  • A third has mastered the laws of proportion mathematically, as he has found them in Euclid or other geometrical treatise.

    Short Studies on Great Subjects James Anthony Froude
  • I do not ask him to reveal to me the demonstrations of Euclid.

    Slavery Ordained of God Rev. Fred A. Ross, D.D.
  • If verbal logic were sufficient, life would be as plain sailing as a piece of Euclid.

    The Pocket R.L.S. Robert Louis Stevenson
British Dictionary definitions for Euclid


3rd century bc, Greek mathematician of Alexandria; author of Elements, which sets out the principles of geometry and remained a text until the 19th century at least
the works of Euclid, esp his system of geometry
Derived Forms
Euclidean, Euclidian (juːˈklɪdɪən) adjective
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
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Euclid in Science
Greek mathematician whose book, Elements, was used continuously until the 19th century. In it he organized and systematized all that was known about geometry. Euclid's systematic use of deductions and axioms was widely regarded as a model working method and influenced mathematicians and scientists for over two thousand years.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Euclid in Culture
Euclid [(yooh-klid)]

An ancient Greek mathematician; the founder of the study of geometry. Euclid's Elements is the basis for modern school textbooks in geometry. One of the basic statements, or postulates, of Euclid's geometry is that if a line and a point separate from it are given, only one line parallel to the first line can pass through the point.

Note: Albert Einstein used other approaches to geometry to derive the theory of relativity. These “non-Euclidean geometries” deny Euclid's postulate about parallel lines.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Euclid in Technology
(Named after the Greek geometer, fl ca 300 BC.) A Pascal descendant for development of verifiable system software. No goto, no side effects, no global assignments, no functional arguments, no nested procedures, no floats, no enumeration types. Pointers are treated as indices of special arrays called collections. To prevent aliasing, Euclid forbids any overlap in the list of actual parameters of a procedure. Each procedure gives an imports list, and the compiler determines the identifiers that are implicitly imported. Iterators.
Ottawa Euclid is a variant.
["Report on the Programming Language Euclid", B.W. Lampson et al, SIGPLAN Notices 12(2):1-79, Feb 1977].
The Free On-line Dictionary of Computing, © Denis Howe 2010
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