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IONOSPHERE

Pronunciation (US): 

 Dictionary entry overview: What does ionosphere mean? 

IONOSPHERE (noun)
  The noun IONOSPHERE has 1 sense:

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

  Familiarity information: IONOSPHERE used as a noun is very rare.


 Dictionary entry details 


IONOSPHERE (noun)


Sense 1ionosphere [BACK TO TOP]

Meaning:

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

Classified under:

Nouns denoting spatial position

Hypernyms ("ionosphere" is a kind of...):

part; region (the extended spatial location of something)

Meronyms (parts of "ionosphere"):

D region; D-layer (the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves)

Appleton layer; F layer; F region (the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission)

E layer; E region; Heaviside layer; Kennelly-Heaviside layer (a region of the ionosphere (from 50 to 90 miles up) that reflects radio waves of medium length)

Holonyms ("ionosphere" is a part of...):

air; atmosphere (the mass of air surrounding the Earth)


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