annual ring


noun

an annual formation of wood in plants, consisting of two concentric layers, one of springwood and one of summerwood.

Nearby words

  1. annual,
  2. annual general meeting,
  3. annual parallax,
  4. annual percentage rate,
  5. annual report,
  6. annual rings,
  7. annualize,
  8. annually,
  9. annuit coeptis,
  10. annuitant

Origin of annual ring

First recorded in 1875–80

Also called growth ring, tree ring.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for annual ring

annual ring

noun

a ring of wood indicating one year's growth, seen in the transverse section of stems and roots of woody plants growing in temperate climatesAlso called: tree ring
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

Science definitions for annual ring

annual ring

See under growth ring.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.