black aurora

noun

A structure that is embedded in a uniformly bright aurora, where its optical emission is significantly reduced, presenting as either patches or arcs that mainly drift eastwards.

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Meanings

nounblack aurora (plural black auroras or black aurorae)

plural black auroras · plural black aurorae

  1. A structure that is embedded in a uniformly bright aurora, where its optical emission is significantly reduced, presenting as either patches or arcs that mainly drift eastwards.
Cite this entry
APA

black aurora. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/black%20aurora

MLA

“black aurora.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/black%20aurora. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “black aurora,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/black%20aurora.

Source: black aurora on Wiktionary, CC BY-SA 4.0.