auroral chorus
n.— «The South Island of New Zealand and the Tierra del Fuego region of South America, plus the Antarctic Peninsula, are where the good displays of Aurora and auroral chorus can be seen and heard.» —“Part 2 of 3, Natural VLF Radio Listening” by Stephen McGreevy Usenet: rec.radio.shortwave Aug. 11, 1995. (source: Double-Tongued Dictionary)
Further reading
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