• synonyms


[hawr-frawst, -frost, hohr-]
See more synonyms for hoarfrost on Thesaurus.com
  1. frost(def 2).
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Origin of hoarfrost

First recorded in 1250–1300, hoarfrost is from the Middle English word hor-frost. See hoar, frost
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for hoarfrost

ice, freeze, hoarfrost, hoar, iciness, frigidity, drop, rime, blight, dip, wintriness

Examples from the Web for hoarfrost

Historical Examples of hoarfrost

  • He fancied there would be hoarfrost on the trees in the morning.

    A Michigan Man

    Elia W. Peattie

  • All the grass and ground vegetation was white with hoarfrost.

    In Pastures Green

    Peter McArthur

  • He prayed for frost, and hoarfrost settled that night on its branches.

  • "It is bright as hoarfrost on the slopes and tops there," said Nod, pointing.

    The Three Mulla-mulgars

    Walter De La Mare

  • And he destroyed their vineyards with hail, and their mulberry trees with hoarfrost.

British Dictionary definitions for hoarfrost


  1. a deposit of needle-like ice crystals formed on the ground by direct condensation at temperatures below freezing pointAlso called: white frost
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for hoarfrost


c.1300, hore-forst; see hoar + frost (n.).

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Online Etymology Dictionary, © 2010 Douglas Harper

hoarfrost in Science


  1. Frozen dew that forms a white coating on a surface.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.