tree ring

noun

Origin:
1915–20

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
tree ring
 
n
another name for annual ring

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Dictionary.com's 21st Century Lexicon
Main Entry:  tree ring1
Part of Speech:  n
Definition:  any of the concentric rings of the cross-section of a tree trunk, representing a year's growth; the layer of wood produced by a year's growth in a woody plant; also called annual ring
Main Entry:  tree ring2
Part of Speech:  n
Definition:  one of the markings on fauna that correspond to a year's growth; also called annulus
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Example sentences
Tree ring temperature reconstructions are not even the main evidence for climate change.
The problem is not limited to the tree ring proxies.
Records of past temperature, precipitation, and climate and environmental change derived from tree ring measurements.
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