We found 9 dictionaries that define the word upper atmosphere:

General (7 matching dictionaries)

1. upper atmosphere: American Heritage Dictionary of the English Language
2. upper atmosphere: Collins English Dictionary
3. upper-atmosphere: Wordnik
4. upper atmosphere: Infoplease Dictionary
5. Upper atmosphere: Wikipedia, the Free Encyclopedia
6. upper atmosphere: TheFreeDictionary.com
7. upper atmosphere: Dictionary.com

Computing (1 matching dictionary)

8. upper atmosphere: Encyclopedia

Tech (1 matching dictionary)

9. Glossary of Meteorology (No longer online)

Phrases: Space & Upper Atmosphere Research Commission, Upper Atmosphere Research Satellite, more... ▸ Words similar to upper atmosphere ▸ Usage examples for upper atmosphere ▸ Idioms related to upper atmosphere ▸ Wikipedia articles (New!) ▸ Words that often appear near upper atmosphere ▸ Rhymes of upper atmosphere ▸ Invented words related to upper atmosphere