growth ring

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Related to Growth rings: Annual rings, Tree rings

growth ring

n.
1. A growth layer in secondary xylem seen in a cross section of a woody stem or branch.
2. A layer of calcareous material or other substance deposited in a single period of growth of an animal, as in an otolith or a turtle scute.

growth ring

n
(Botany) another name for annual ring

growth ring

A layer of wood formed in a plant during a single period of growth. Growth rings are visible as concentric circles of varying width when a tree is cut crosswise. They represent layers of cells produced by the tissue known as vascular cambium. ♦ Most growth rings reflect a full year's growth and are called annual rings. But abrupt changes in the environment, especially in the availability of water, can cause a plant to produce more than one growth ring in a year. See more at dendrochronology.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.growth ring - an annual formation of wood in plants as they growgrowth ring - an annual formation of wood in plants as they grow
organic phenomenon - (biology) a natural phenomenon involving living plants and animals
References in periodicals archive ?
They found the temperature and precipitation levels by measuring the width of annual growth rings in the wood.
Some of these nodules have a homogeneous internal structure, says Chan, while others appear to have growth rings or an outer rind.
Scientists, led by Buckley, were able to reconstruct 759 years of past climate in the region surrounding Angkor by studying the annual growth rings of a cypress tree, Fokienia hodginsii, growing in the highlands of Vietnam's Bidoup Nui Ba National Park, about 700 kilometers away.
By the time the champion beech had 130 growth rings, overhunting and the cutting of the beech forests had reduced the most abundant bird in North America to a memory.
Bendtsen and Senti (1) found a five-fold increase in MOE and a three-fold increase in modulus of rupture (MOR) in the first 12 growth rings from the pith in loblolly pine.
Multiple regression analyses were conducted by regressing growth rings and the presence of pith on bow, twist, and crook.
However, some other bones don't have such cavities and so preserve all their growth rings.
Then they count backward in time as they tick off the annual growth rings one by one.
Those features develop during most stages of a fish's life and show numerous growth rings, says Scott J.
Its annual growth rings revealed it to be the oldest tree east of the Rocky Mountains, having taken root some time before 364 A.
The trees were at least 75 years old when they died, but spindly, with very narrow growth rings and under-sized leaves that suggest they were suffering a great deal of stress when they were alive.