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superposition

 - 2 dictionary results

su⋅per⋅po⋅si⋅tion

[soo-per-puh-zish-uhn]
–noun Geology.
the order in which sedimentary strata are superposed one above another.


Origin:
1790–1800; < F superposition; see super-, position
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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su·per·po·si·tion   (sōō'pər-pə-zĭsh'ən)   
n.  
  1. The act of superposing or the state of being superposed: "Yet another technique in the forensic specialist's repertoire is photo superposition" (Patrick Nuyghe).

  2. Geology The principle that in a group of stratified sedimentary rocks the lowest were the earliest to be deposited.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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