Word Study
ionized |
ionizing |
ionizing radiation |
ionophore |
ionophoresis |
ionosphere
| ionospheric wave
| iontophoresis
| iontotherapy
| ioqua shell
| iosif vissarionovich dzhugashvili
ionosphere
WORDNET DICTIONARY
Noun ionosphere has 1 sense
- ionosphere(n = noun.location) - the outer region of the Earth's atmosphere; contains a high concentration of free electrons; is a part of air, atmosphere
has parts: d-layer, d region, appleton layer, f layer, f region, e layer, e region, heaviside layer, kennelly-heaviside layer
is a kind of part, region
CIDE DICTIONARY
ionosphere, n.
the outer region of the earth's atmosphere, beyond which is the exosphere ; it contains a high concentration of free electrons and ions, and extends from about 50 miles to about 250 miles above the earth's surface, but the height shows daily and seasonal variation, and the composition of the particles in the ionosphere is also affected by events such as solar flares. [WordNet 1.5]
OXFORD DICTIONARY
ionosphere, n. an ionized region of the atmosphere above the stratosphere, extending to about 1,000 km above the earth's surface and able to reflect radio waves for long-distance transmission round the earth (cf. TROPOSPHERE).
Derivative
ionospheric adj.
THESAURUS
ionosphere
Appleton layer, CAT, F layer, Heaviside-Kennelly layer, Van Allen belt, aerospace, aerosphere, air hole, air pocket, airspace, belt, bump, ceiling, chemosphere, crosswind, empty space, favorable wind, fog, front, head wind, high-pressure area, hole, isothermal region, jetstream, layer, low-pressure area, lower atmosphere, outer atmosphere, overcast, photosphere, pocket, roughness, soup, space, stratosphere, stratum, substratosphere, tail wind, tropopause, troposphere, trough, turbulence, upper atmosphere, visibility, visibility zero
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