Silver grain

(Bot.)

the lines or narrow plates of cellular tissue which pass from the pith to the bark of an exogenous stem; the medullary rays. In the wood of the oak they are much larger than in that of the beech, maple, pine, cherry, etc.

silver grain

The grain of quartersawn wood showing conspicuous shiny flecks or figures; particularly noticeable in oak, beech, bird’s-eye maple, and sycamore.

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