airspace
airspace [er′spās΄]
n.
1. space for maneuvering an aircraft flying in formation
2. the space extending upward above an area of the earth's surface; specif., the space above a nation over which it can claim jurisdiction
3. the space above private land needed for its quiet enjoyment

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air·space or air space (ârʹspās') n.
1. The portion of the atmosphere above a particular land area, especially that of a political subdivision such as a nation.
2.
a. The space occupied by an aircraft.
b. A designated sector of space, such as that in the vicinity of an airport.
3.
a. Chiefly British. Space available for broadcasting within a particular frequency: “Mobile radio has to compete for air space with other services such as broadcast radio, television, and even military services” (Financial Times).
b. See airtime.

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Universalium. 2010.

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