A specified portion of the atmosphere, especially that under the technical aviation control and/or jurisdiction of a particular state over which territory (and territorial waters) it lies
Various European countries transferred the aviation control of their adjoining airspace to Eurocontrol, while each retaining legal jurisdiction.
Space (i.e. a few neighboring frequencies) available for broadcasting within a particular frequency band
The legalisation of free radios caused a bitter fight for airspace.
{i} space which contains air, space through which air passes; region of atmosphere situated above a country and coming under its jurisdiction; area of space filled by an aircraft (also air space)
A country's airspace is the part of the sky that is over that country and is considered to belong to it. The plane left British airspace. the sky above a particular country, that is legally controlled by that country
the atmosphere above a nation that is deemed to be under its jurisdiction; "the plane was refused permission to enter Chinese airspace"
All high performance windows have at least two panes of glass sandwiched together, with an airspace in between The size of the airspace effects the overall performance of a window A 1/2" to 3/4" space is considered optimal
A specified portion of the atmosphere, especially that under the control or jurisdiction of a particular country