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ionosphere▼◼◼◼(part of Earth's atmosphere)noun[UK: aɪ.ˈɒ.nə.sfɪə(r)] [US: aɪ.ˈjɑː.nə.sfir]
ionosphere▼◼◼◼(similar region)noun[UK: aɪ.ˈɒ.nə.sfɪə(r)] [US: aɪ.ˈjɑː.nə.sfir]
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