tree ring

American  

noun

1. annual ring.

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tree ring British  

noun

1. another name for annual ring

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Etymology

Origin of tree ring

First recorded in 1915–20

Example Sentences

Researchers have discovered evidence in tree ring data from fossilised wood that suggests we could get events perhaps ten times larger than the Carrington event.

From BBC • Dec. 6, 2025

The average temperature from June through August 2023 was 2.20 degrees Celsius warmer than the average summer temperature between the years 1 and 1890, according to the researchers’ tree ring data.

From New York Times • May 14, 2024

For the majority of climate research, scientists could only measure short-term climate fluctuations from over hundreds of years ago using tree ring records.

From Salon • Jan. 22, 2024

To measure drought sensitivity, the authors analyzed 6.6 million tree ring samples from 122 species worldwide.

From Science Daily • Dec. 13, 2023

There she stood whose burning beauty Made the world's high roof tree ring, A white poppy tall and wind-blown In the garden of the king.

From Ballads of Lost Haven A Book of the Sea by Carman, Bliss