Wordnet Synset 08599865-n
http://lila-erc.eu/data/lexicalResources/LatinWordNet/id/LexicalConcept/08599865-n an entity of type: LexicalConcept
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
Wordnet Synset 08599865-n