geocoronium

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English[edit]

Etymology[edit]

geo- +‎ corona +‎ -ium, coined by Alfred Wegener in 1911.

Noun[edit]

geocoronium (uncountable)

  1. (geophysics, meteorology, obsolete) A hypothetical gaseous chemical element proposed to explain certain spectroscopic lines, and the green glow, found in the polar aurorae, that was later found to be explained by singly-ionized oxygen.

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