Aircraft or machines that are heavier than air and stay aloft through the dynamic action of air on their surfaces, like airplanes and helicopters.
From French aérodyne, combining Greek aero- (air) and -dyne (power, force). The term emerged in early aviation to distinguish powered flying machines from lighter-than-air balloons and dirigibles.
The word aerodyne perfectly captures the revolution in how humans learned to fly—instead of floating like a balloon, we built machines heavy enough to fall but shaped cleverly enough to make air push us up faster than we drop.
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