白しら太たしらたMeanings1nounsapwoodRefers to the outer, lighter-colored wood in a tree trunk, as opposed to the inner heartwood (赤身). Used in woodworking and forestry contexts.See also: 赤身白しら太たは赤あか身みに比くらべて柔やわらかく、腐くさりやすい。Sapwood is softer and more prone to decay compared to heartwood.
