Lohkeilu

Lohkeilu is a term encountered in Finnish-language contexts that refers to related but distinct concepts in two primary domains: geology/geomorphology and woodworking or timber processing. In geology, lohkeilu describes a blocky weathering pattern in bedrock, where surfaces break along natural joints to form roughly rectangular blocks. This produces a stepped or mosaic appearance and is often discussed in relation to frost action, joint spacing, and erosion processes. In woodworking and timber handling, lohkeilu denotes the practice of cutting timber into uniform blocks or slabs, emphasizing straight, perpendicular cuts to create modular pieces for construction, storage, or further processing.

The word stems from lohko, meaning block or segment, with the suffix -ilu forming a noun that denotes an activity or process. In everyday Finnish, lohkeilu can also be used more generally to describe any act of segmentation or block formation, but its precise interpretation depends on the field of use. Because sources vary and there is no single standardized definition across disciplines, lohkeilu appears mainly in regional guides, craft manuals, and field-oriented writings rather than in broad encyclopedic literature.

See also: lohko, lohkare, segmentation.