Definitions | penumbra |
| noun
- A partially shaded area around the edges of a shadow, especially an eclipse.
- A region around the edge of a sunspot, darker than the sun's surface but lighter than the middle of the sunspot.
Translations: - Dutch: halfschaduw (1)
- French: pénombre (1)
- German: Halbschatten (1), Penumbra (2)
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