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Definition of "gnomon" [gno•mon]

  • An object, such as the style of a sundial, that projects a shadow used as an indicator. (noun)
  • The geometric figure that remains after a parallelogram has been removed from a similar but larger parallelogram with which it shares a corner. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "gnomon" in a sentence
  • "Scholars have talked, indeed, of a Greek origin or of an Etruscan origin, and the technical term for the Roman surveying instrument, _groma_, has been explained as the Greek word 'gnomon', borrowed through an"
  • "Nelson informed everyone that the piece sticking up was called the gnomon."
  • "This particular one is called a gnomon magic square, because clusters of any four contiguous numbers add up to the same sum."