A large, thick, flat piece of stone, concrete, or other solid material, typically rectangular in shape.
Of uncertain origin, possibly from Middle English sclabbe meaning 'mud' or related to Old Norse slabb 'slush'. The word evolved from describing soft, formless substances to hard, flat surfaces, suggesting a development from natural formations to constructed materials.
The architectural term 'slab construction' refers to buildings made with large flat concrete pieces, a technique that revolutionized 20th-century construction by allowing rapid assembly of standardized components. In geology, natural rock slabs often reveal millions of years of earth's history in their visible layers.
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