Plural of dumpcart: wheeled vehicles or carts designed to carry and discharge loads of material like dirt, gravel, or waste by tilting or opening a bottom hatch.
From 'dump' (to throw down or unload, from Middle Dutch 'dompen') + 'cart' (a wheeled vehicle). The compound emerged in industrial English to describe purpose-built cargo vehicles.
Dumpcarts were revolutionary for construction and mining because they let workers move massive quantities of heavy material without manual shoveling—one worker with a dumpcart could do the job of five people with shovels!
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