Definitions for ionosphereaɪˈɒn əˌsfɪər

This page provides all possible meanings and translations of the word ionosphere

Random House Webster's College Dictionary

i•on•o•sphereaɪˈɒn əˌsfɪər(n.)

  1. the region of the earth's atmosphere between the stratosphere and the exosphere, consisting of several ionized layers and extending from about 50 to 250 mi. (80 to 400 km) above the surface of the earth.

    Category: Meteorology

i•on`o•spher′ic-ˈsfɛr ɪk(adj.)

Princeton's WordNet

  1. ionosphere(noun)

    the outer region of the Earth's atmosphere; contains a high concentration of free electrons

Wiktionary

  1. ionosphere(Noun)

    The part of the Earth's atmosphere beginning at an altitude of about 50 kilometers (31 miles) and extending outward 500 kilometers (310 miles) or more.

  2. ionosphere(Noun)

    The similar region of the atmosphere of another planet.

Freebase

  1. Ionosphere

    The ionosphere is a region of the upper atmosphere, from about 85 km to 600 km altitude, and includes the thermosphere and parts of the mesosphere and exosphere. It is distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner edge of the magnetosphere. It has practical importance because, among other functions, it influences radio propagation to distant places on the Earth.

Dictionary of Military and Associated Terms

  1. ionosphere

    That part of the atmosphere, extending from about 70 to 500 kilometers, in which ions and free electrons exist in sufficient quantities to reflect electromagnetic waves.

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