from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A white coating of ice crystals formed by sublimation of atmospheric water vapor on a surface.

from The Century Dictionary.

  • noun White frost. See hoar, a., and frost.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The white particles formed by the congelation of dew; white frost.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Dew-drops which have undergone deposition and frozen into ice crystals to form a white deposit on an exposed surface, when the air is cold and moist.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun ice crystals forming a white deposit (especially on objects outside)


from Wiktionary, Creative Commons Attribution/Share-Alike License

hoar +‎ frost


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  • -giggle-

    October 2, 2008

  • the definition seems scientific and recent but the word itself sounds archaic. that's my personal opinion, anyway.

    November 22, 2008