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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The study of climate changes and past events by comparing the successive annual growth rings of trees or old timber.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The science that uses the spacing between the annual growth rings of trees to date their exact year of formation.


dendro- +‎ chronology (Wiktionary)



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  • The study of tree rings, both to find a tree's age and to study past events and climate change.

    March 6, 2007