- The definition of viscous is sticky or not easily able to flow.
An example of something viscous is maple syrup.
- having a cohesive and sticky fluid consistency; viscid
- Physics having viscosity
Origin of viscousMiddle English viscouse ; from Late Latin viscosus ; from Classical Latin viscum, birdlime made from mistletoe berries, mistletoe, probably ; from Indo-European base an unverified form weis-: see virus
- Having relatively high resistance to flow.
- Viscid; sticky.
Origin of viscousMiddle English, from Old French, from Late Latin viscōsus; see viscose.
(comparative more viscous, superlative most viscous)
First attested in 1605. From Middle French viscous and Late Latin viscÅsus, from viscum (“birdlime").