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[den-droh-kruh-nol-uh-jee] /ˌdɛn droʊ krəˈnɒl ə dʒi/
the science dealing with the study of the annual rings of trees in determining the dates and chronological order of past events.
Origin of dendrochronology
First recorded in 1925-30; dendro- + chronology
Related forms
[den-droh-kron-l-oj-i-kuh l] /ˌdɛn droʊˌkrɒn lˈɒdʒ ɪ kəl/ (Show IPA),
dendrochronologically, adverb
dendrochronologist, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for dendrochronology


the study of the annual rings of trees, used esp to date past events
Derived Forms
dendrochronological (ˌdɛndrəʊˌkrɒnəˈlɒdʒɪkəl) adjective
dendrochronologist, noun
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
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Word Origin and History for dendrochronology

"dating by tree rings," 1928; see dendro- + chronology.

Online Etymology Dictionary, © 2010 Douglas Harper
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dendrochronology in Science
The study of growth rings in trees for the purpose of analyzing past climate conditions or determining the dates of past events. Because trees grow more slowly in periods of drought or other environmental stress than they do under more favorable conditions, the size of the rings they produce varies. Analyzing the pattern of a tree's rings provides information about the environmental changes that took place during the period in which it was growing. Matching the pattern in trees whose age is known to the pattern in wood found at an archaeological site can establish the age at which the wood was cut and thus the approximate date of the site. By comparing living trees with old lumber and finding overlapping ring patterns, scientists have established chronological records for some species that go back as far as 9,000 years.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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