Lammonsäröä

Lammonsäröä is a Finnish term that translates to "lamb's scar" or "lamb's fissure." It refers to a specific type of crack or split that can occur in certain types of wood, particularly those used in traditional crafts or construction. The term is most commonly associated with the splitting of firewood, where a lammonsäröä can indicate the presence of internal stresses within the wood that may lead to more significant breaks.

The formation of lammonsäröä is often attributed to factors such as the drying process of the wood, internal tensions from growth, or even impact damage. While not always a sign of a major defect, it can be an indicator that the wood is more prone to breaking along these lines. In some contexts, particularly in folk traditions or older construction methods, the appearance of lammonsäröä might have held symbolic meaning or been used as a diagnostic tool for wood quality. The term is not widely used in modern scientific forestry or materials science, but it persists in vernacular language, especially in rural areas of Finland.