Viscosity
Viscosity was the measurement of the thickness of a liquid. An example of this was blood viscosity.

The s regularly checked the living conditions of the Trill symbionts in the Caves of Mak'ala, including ion concentration, temperature and viscosity. ()

In 2370, Mora Pol described Odo in his initial state upon discovery as "a viscous, shapeless form of fluid, a veritable organic broth". ()

The Silver Blood discovered in 2372 was a metallic compound with high viscosity. ()

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Measurements