from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A luminous spot on a lunar halo.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A bright, circular spot, sometimes seen on a lunar halo, caused by refraction through ice crystals

from the GNU version of the Collaborative International Dictionary of English

  • n. A mock moon; an image of the moon which sometimes appears at the point of intersection of two lunar halos. Cf. parhelion.

from The Century Dictionary and Cyclopedia

  • n. A bright spot on a lunar halo, produced by refraction through a preponderating number of ice-crystals floating perpendicularly or vertically; a mock moon.


para-1 + Greek selēnē, moon.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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