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parallel postulate

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noun Geometry.
  1. the axiom in Euclidean geometry that only one line can be drawn through a given point so that the line is parallel to a given line that does not contain the point.
Also called parallel axiom.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for parallel axiom

Historical Examples

  • The last published work of Saccheri was a recital of his endeavors at demonstrating the parallel-postulate.

    The Mystery of Space

    Robert T. Browne

  • It consists of results arrived at by geometers in seeking a proof of the parallel-postulate.

    The Mystery of Space

    Robert T. Browne


parallel axiom in Science

parallel postulate

  1. See under Euclidean.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.