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  1. Viscosity - Wikipedia

    Viscosity is the material property which relates the viscous stresses in a material to the rate of change of a deformation (the strain rate). Although it applies to general flows, it is easy to …

  2. Viscosity | Definition, Facts, Formula, Units, & Examples | Britannica

    Oct 9, 2025 · What is viscosity? Viscosity is the resistance of a fluid (liquid or gas) to a change in shape or movement of neighbouring portions relative to one another. Viscosity denotes …

  3. Viscosity: Definition, Examples, and Formula - Science Facts

    Oct 18, 2024 · Viscosity is a physical quantity that describes a fluid’s resistance to flow. It is a property that resists the relative displacement of the different layers of the fluid.

  4. What is Viscosity? - GeeksforGeeks

    Jul 23, 2025 · Viscosity is a fundamental property of liquids that describes their internal resistance to flow. Imagine three bowls—one filled with water and the other with oil and honey.

  5. VISCOSITY Definition & Meaning - Merriam-Webster

    The meaning of VISCOSITY is the quality or state of being viscous : a sticky or glutinous consistency. How to use viscosity in a sentence.

  6. Define viscosity. - howengineeringworks.com

    1 day ago · Viscosity is defined as the property of a fluid that resists its motion or flow. It represents the internal friction between adjacent layers of fluid moving at different velocities.

  7. 9.7: Viscosity - Biology LibreTexts

    Viscosity is a fluids resistance to flow. This page details why certain liquids flow easily while others are slow as molasses.

  8. Viscosity – The Physics Hypertextbook

    Informally, viscosity is the quantity that describes a fluid's resistance to flow. Fluids resist the relative motion of immersed objects through them as well as to the motion of layers with …

  9. What Is Viscosity? The Resistance to Flow Explained

    Understand viscosity: the physics of fluid resistance, how it’s measured, and why it’s critical for engineering everything from motor oil to pumps.

  10. Viscosity - Definition, Formula, Unit, Principle, FAQs

    Oct 27, 2025 · Viscosity is the measurement of how thick a fluid is and how resistant it is to flowing. It varies with temperature, pressure, and the speed at which the fluid is flowing.