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18.117.11.13
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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 ion·o·sphere /aɪˈɑnəˌsfɪr/
 電離層

From: WordNet (r) 2.0

 ionosphere
      n : the outer region of the Earth's atmosphere; contains a high
          concentration of free electrons