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growth ring

growth ring

1 3.8
A layer of wood made in one year that appears as a ring in a tree trunk
  • noun
  • /ɡroʊθ rɪŋ/
  • Specialized
translation icon : anillo de crecimiento
  • While I was there, someone sent in an otolith with 7 annual growth rings taken from a cod caught in the Irish Sea (as I recall; so a different stock, but still...).
  • growth rings in a tree
  • annual growth rings
  • count the growth rings

Examples

  • When coral grows, it produces both daily growth rings and annual growth rings, so you can tell from a piece of coral how many days are in a year.

    Blog text (15)
  • Study of the bones shows no growth ring patterns that would indicate dormant periods similar to those of trees.

    Blog text (20)
  • Some trees have two growth rings or sometimes more, and with a little

    Blog text (14)
  • Some years have two growth rings or sometimes more, leaving your tree ring evidence as false.

    Blog text (14)
  • When coral grows, it produces both daily growth rings and annual growth rings, so you can tell from a piece of coral how many days are in a year.

    Blog text (15)
  • There are very few meteorological stations, and instrumental records from glaciers, lakes, or tree growth rings are rare and difficult to interpret.

    Blog text (2)
  • By measuring the annual growth rings on the mussel shells, Chatters was able to infer past water temperatures, which influence growth rate.

    Academic text (1995)
  • Those thin layers of plaster, somewhat like the growth rings in a tree, trap traces of activity in a well-defined temporal sequence.

    Academic text (2006)
  • I shared an office with a guy who was interested in the age structure of cod stocks and who used the annual growth rings on cod otoliths (inner ear bones) to get a handle on this.

    Blog text (26)
  • Scientists can determine the age of a tree by counting its growth rings in the cross-section of the trunk.

Synonyms

annual ring
vsgrowth ring
3.6

A ring of wood in a tree trunk that shows one year's growth

describes the yearly wood layer as part of trunk structure not only for dating

Surface Forms

growth ring singular
growth rings plural

Morphology

growth + ring

The compound is transparently compositional: 'growth' (increase/annual development) modifies 'ring' (a circular layer), so a B1 learner who knows both words can infer it denotes a circular layer formed by a year’s growth in a tree. This is a straightforward noun–noun compound describing a physical feature and the concept of tree rings is widespread across languages, making the meaning easily predictable.

Etymology

Growth ring comes from a simple image: when you cut across a tree trunk you see many rings, and each growth ring is the layer of wood the tree made in one year. So, by counting growth rings you can tell a tree's 'age', and wide or narrow rings can show a 'good' or 'bad' growing year.