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annual ring
noun
- an annual formation of wood in plants, consisting of two concentric layers, one of springwood and one of summerwood.
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 climates Also calledtree ring
annual ring
- See under growth ring
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Word History and Origins
Origin of annual ring1
First recorded in 1875–80
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