Fluidity

Definition

Fluidity refers to the ability or tendency of substances (liquids and gases) to flow easily due to their particles being able to move past each other freely.

Related terms

Viscosity:

A measure of a fluid's resistance to flow. It describes the internal friction of a moving fluid.

Surface Tension:

The property allowing liquid to resist an external force due to the cohesive nature of its molecules.

Capillarity: The ability of a liquid to flow in narrow spaces without the assistance of, and in opposition to, external forces like gravity.