A grooved or slotted board placed next to a kitchen sink to allow dishes and cookware to dry, or a surface for draining items.
Compound noun: 'drain' + 'board' (a flat wooden or metal surface). This is a 20th-century domestic term that emerged with standardized kitchen design and indoor plumbing improvements.
The drainboard was an ingenious low-tech solution to a medieval problem—before it, dishes had to be hand-dried or left standing in a sink. Its design is so efficient that even modern kitchens with dishwashers often include one, proving that sometimes the oldest solutions remain the best.
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