The middle of the air; the space above the ground or between two points in the atmosphere.
Compound word: 'mid' from Old English 'midde' (middle) plus 'air' from Latin 'aer.' Combined in modern English to describe spatial positioning in the atmosphere.
Physics gets weird in midair—gravity affects everything equally, which is why astronauts appear weightless in space; they're in continuous free fall through the ultimate midair.
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