Having the shape or form of a hexagon, with six sides and six angles.
Derived from 'hexagon' plus the Latin suffix '-al' (relating to). This adjectival form emerged in the 16th century as geometric terminology became more standardized.
Basalt columns in places like the Giant's Causeway in Ireland naturally form perfect hexagonal shapes due to cooling and cracking patterns in lava—it's like nature's printing press for geometry.
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