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Noun: ionosphere  I'ó-nu`sfir [N. Amer], I'ó-nu`sfi-u(r) [Brit]
  1. The outer region of the Earth's atmosphere; contains a high concentration of free electrons

Derived forms: ionospheres

Type of: part, region

Part of: air, atmosphere

Encyclopedia: Ionosphere

Nearest

ionised
ioniser
ionization
ionization chamber
ionization tube
ionize
ionized
ionizer
ionizing radiation
ionophoresis
ionosphere
ionospheric
ionospheric wave
iontophoresis
iontotherapy
IOP
Iosif Vissarionovich Dzhugashvili
iota
IOU
Iowa
Iowa crab