viscous

play
adjective vis·cous \ ˈvi-skəs \

Definition of viscous

1 :having a thick or sticky consistency :viscid
  • viscous secretions
  • viscous corn syrup
2 technical :having or characterized by a high resistance to flow
  • viscous lava

viscously

adverb

viscousness

noun

Examples of viscous in a Sentence

  1. viscous syrup that takes forever to pour from a narrow-neck bottle

Recent Examples of viscous from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'viscous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of viscous

Middle English viscouse, from Anglo-French viscos, from Late Latin viscosus full of birdlime, viscous, from Latin viscum mistletoe, birdlime; akin to Old High German wīhsila cherry, Greek ixos mistletoe

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VISCOUS Defined for English Language Learners

viscous

play
adjective

Definition of viscous for English Language Learners

  • of a liquid : thick or sticky : not flowing easily


Medical Dictionary

viscous

play
adjective vis·cous \ ˈvis-kəs \

medical Definition of viscous

1 :having a glutinous consistency and the quality of sticking or adhering :viscid
2 :having or characterized by viscosity
  • a viscous flow


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