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| Main Entry: | |
| Part of Speech: | noun |
| Definition: | upper layer of atmosphere |
| Synonyms: | isothermal layer, ozone, ozonosphere |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
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Copyright © 2013 by the Philip Lief Group.
Cite This Source
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