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Meaning of coronal hole | Babel Free

Noun CEFR B2

Definitions

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

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

coronal mass ejection coronal plane coronal rain coronal suture coronamic acid coronamycin

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