When two fluid layers move relative to each other, a friction force develops between them and the slower layer acts to slow down the faster layer. This internal resistance to flow is described by the …

The meaning of VISCOUS is having a thick or sticky consistency : viscid. How to use viscous in a sentence.

Viscous means sticky, gluey and syrupy. So if something is viscous, you usually don't want to stick your fingers in it — that goes for boogers and maple syrup alike. Not quite a solid and not quite a liquid, …

viscous (ˈvɪskəs) or viscose adj 1. (of liquids) thick and sticky; viscid 2. having or involving viscosity

Add to word list (of a liquid) thick and sticky; not flowing easily: viscous oil (Definition of viscous from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of viscous adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

In oil and syrup, the particles move sluggishly; such liquids are termed viscous. A viscous fluid is a fluid which does not flow easily. Collins COBUILD Key Words for Chemical Engineering. Copyright © …

Mar 7, 2026 · Adjective viscous (comparative more viscous, superlative most viscous) Having a thick, sticky consistency between solid and liquid (that is, a high viscosity). Synonyms: syrupy, viscid, …

Mar 29, 2026 · A viscous fluid is any liquid or gas that resists flowing freely, caused by internal friction between its molecules as they move past each other. The higher the viscosity, the slower and thicker …

Britannica Dictionary definition of VISCOUS [more viscous; most viscous] of a liquid : thick or sticky : not flowing easily viscous liquids