A landing platform designed specifically for helicopters, usually marked with a large circle and letter 'H' to be visible from the air.
Compound word: 'heli-' (from helicopter) plus 'pad' (a flat surface). Emerged in mid-20th century as helicopter traffic increased in cities and on ships.
Helipads are a modern invention that changed urban emergency medicine—now trauma surgeons can operate on patients during their helicopter ride, saving critical minutes compared to ground ambulances!
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