summerwood
/ˈsʌmərˌwʊd/
noun
- The dense, darker part of an annual growth ring in a tree, formed later in the growing season.
- When you look at a cross-section of a tree trunk, the summerwood appears as a narrow, dark band.
- The summerwood in this oak plank is much darker than the springwood.
- The strength of the lumber comes largely from the dense summerwood layers.
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