gegenschein

noun, ge·gen·schein often capitalized \ˈgā-gən-ˌshīn\

Definition of GEGENSCHEIN

: a faint light about 20° across on the celestial sphere opposite the sun probably caused by backscatter of sunlight by solar-system dust

German, from gegen against, counter- + Schein shine

First Known Use: 1877

Next Word in the Dictionary: GegenstandstheoriePrevious Word in the Dictionary: gegenionAll Words Near: gegenschein

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