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

  • adj. Botany Having a white, powdery covering or bloom.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having a very fine whitish powder on a surface.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Frosty; covered with fine scales, hairs, dust, bloom, or the like, so as to give the appearance of frost.

from The Century Dictionary and Cyclopedia

  • Covered with a bloom or powder so as to appear as if frosted: said of some plant-surfaces dusted with a fine granular secretion.


Latin pruīnōsus, frosty, from pruīna, hoarfrost; see preus- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin pruīnōsus, from pruīna (Wiktionary)



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