Definition of viscous
- viscous secretions
- viscous corn syrup
- viscous lava
viscous syrup that takes forever to pour from a narrow-neck bottle
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.
First Known Use: 14th centurySee Words from the same year
of a liquid : thick or sticky : not flowing easily
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