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Definition of Gegenschein
1. Noun. A faint spot of light in the night sky that appears directly opposite the position of the sun; a reflection of sunlight by micrometeoric material in space.
Definition of Gegenschein
1. Noun. (astronomy) A faint brightening of the night sky in the region of the ecliptic directly opposite the Sun. ¹
¹ Source: wiktionary.com
Definition of Gegenschein
1. [n -S]