# Definition:Viscosity

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## Definition

The viscosity of a fluid is a measure of how large a damping force it exerts upon a body moving through it.

This article is incomplete.In particular: Establish its formal definition: how great the damping force against how large a body at what velocity. Fluid mechanics has not really been started on this site yet. I have a degree semester to infodump.You can help $\mathsf{Pr} \infty \mathsf{fWiki}$ by expanding it.To discuss this page in more detail, feel free to use the talk page.When this work has been completed, you may remove this instance of `{{Stub}}` from the code.If you would welcome a second opinion as to whether your work is correct, add a call to `{{Proofread}}` the page. |

## Sources

- 1972: George F. Simmons:
*Differential Equations*... (previous) ... (next): $\S 3.20$: Vibrations in Mechanical Systems