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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. 2018.
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Examples from the Web for Euclid
Contemporary Examples
Historical Examples
  • The farmers from Euclid and Newburgh came in with twenty-eight yoke of cattle.

  • I do not ask him to reveal to me the demonstrations of Euclid.

    Slavery Ordained of God Rev. Fred A. Ross, D.D.
  • It contains a course of applied geometry in connection with Euclid's Elements.

    Albert Durer T. Sturge Moore
  • As it is, his poem has the faults we should look for in a metrical version of Euclid.

  • One of the complaints often made against Euclid is that he is ‘diffuse’.

  • To me these views appear as clear as crystal and as unanswerable as Euclid.

  • He demonstrated the proposition of Euclid, and rejected the proposal of his friend.

    The Verbalist Thomas Embly Osmun, (AKA Alfred Ayres)
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 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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