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

  • adj. Having relatively high resistance to flow.
  • adj. Viscid; sticky.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Having a thick, sticky consistency between solid and liquid
  • adj. Of or pertaining to viscosity

from the GNU version of the Collaborative International Dictionary of English

  • adj. Adhesive or sticky, and having a ropy or glutinous consistency; viscid; glutinous; clammy; tenacious.

from The Century Dictionary and Cyclopedia

  • Glutinous; clammy; sticky; adhesive; tenacious.
  • In physics, having the property of viscosity. See viscosity, 2.

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

  • adj. having the sticky properties of an adhesive
  • adj. having a relatively high resistance to flow


Middle English, from Old French, from Late Latin viscōsus; see viscose.
(American Heritage® Dictionary of the English Language, Fourth Edition)
First attested in 1605. From Middle French viscous and Late Latin viscōsus, from viscum ("birdlime"). (Wiktionary)


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