Ionosphere
[n] the outer region of the Earth's atmosphere; contains a high concentration of free electrons
Related Information
Related Terms
aerospace, aerosphere, air hole, air pocket, airspace, Appleton layer, belt, bump, CAT, ceiling, chemosphere, crosswind, empty space, F layer, favorable wind, fog, front, head wind, Heaviside-Kennelly layer, high-pressure area, hole, isothermal region, je