Word Origin

geometry based upon one or more postulates that differ from those of Euclid, especially from the postulate that only one line may be drawn through a given point parallel to a given line. Show More

Origin of non-Euclidean geometry First recorded in

1870–75; non- +

Euclidean Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for non-euclidean geometry the branch of modern geometry in which certain axioms of Euclidean geometry are restated. It introduces fundamental changes into the concept of space Show More

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