annual ring

noun
an annual formation of wood in plants, consisting of two concentric layers, one of springwood and one of summerwood.
Also called growth ring, tree ring.


Origin:
1875–80

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To annual ring
Collins
World English Dictionary
annual ring
 
n
Also called: tree ring a ring of wood indicating one year's growth, seen in the transverse section of stems and roots of woody plants growing in temperate climates

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Dictionary.com's 21st Century Lexicon
Main Entry:  annual ring1
Part of Speech:  n
Definition:  See tree ring
Dictionary.com's 21st Century Lexicon
Copyright © 2003-2014 Dictionary.com, LLC
Cite This Source
American Heritage
Science Dictionary
annual ring  
See under growth ring.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Variations in annual ring widths reflect the conditions that influence tree growth.
One annual ring consists of the light, spring wood band and the darker, summer wood band.
Annual ring widths were determined from the known pitch of the screw that translates the sample.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature