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growth ring
noun
: a layer of wood (such as an annual ring) produced during a single period of growth
Examples of growth ring in a Sentence
Recent Examples on the Web
Teeth grow by the acquisition of daily growth rings.
—Laura Baisas, Popular Science, 13 Nov. 2024
To determine at what age the animals had died, researchers used X-ray imaging to count the growth rings on their teeth, like how botanists count the rings of a tree.
—Margherita Bassi, Smithsonian Magazine, 29 July 2024
The team explains how scientists can examine an octopus’ beak, stylets, and growth rings in the lab to determine how old the animal is.
—Laura Baisas, Popular Science, 11 Apr. 2024
By measuring growth rings on the fossils, the researchers found that they were closely clustered toward the outside of the bone.
—Eric Lagatta, USA TODAY, 4 Jan. 2024
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Word History
First Known Use
1907, in the meaning defined above
Dictionary Entries Near growth ring
Cite this Entry
“Growth ring.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/growth%20ring. Accessed 21 Dec. 2024.
Kids Definition
growth ring
noun
: a layer of wood (as an annual ring) produced during a single period of growth
More from Merriam-Webster on growth ring
Britannica.com: Encyclopedia article about growth ring
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