from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. opposite to the sun (from the Earth)
from the GNU version of the Collaborative International Dictionary of English
- adj. Opposite to the sun; -- said of the point in the heavens 180° distant from the sun.
from The Century Dictionary and Cyclopedia
- Situated at the point in the heavens opposite the sun, as the center of the rainbow, or the ‘gegenschein.’
anti- + solar (Wiktionary)