coronal hole

noun

A region in the corona of a star where magnetic field lines extend out into space, allowing solar wind to escape.

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Meanings

nouncoronal hole (plural coronal holes)

plural coronal holes

  1. astrophysicsA region in the corona of a star where magnetic field lines extend out into space, allowing solar wind to escape.
Cite this entry
APA

coronal hole. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/coronal%20hole

MLA

“coronal hole.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/coronal%20hole. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “coronal hole,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/coronal%20hole.

Source: coronal hole on Wiktionary, CC BY-SA 4.0.