ionosphere
English Thesaurus
1. the outer region of the Earth's atmosphere; contains a high concentration of free electrons (noun.location)
| hypernym | : | part, region, |
| definition | : | the extended spatial location of something (noun.location) |
| part holonym | : | d region, d-layer, |
| definition | : | the lowest region of the ionosphere (35 to 50 miles up) that reflects low-frequency radio waves (noun.location) |
| part holonym | : | appleton layer, f layer, f region, |
| definition | : | 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 (noun.location) |
| part meronym | : | air, atmosphere, |
| definition | : | the mass of air surrounding the Earth (noun.location) |
Visual ArtiKata
Explore ionosphere in ArtiKata.com >