Definition:Roman Weights and Measures/Mass/Scrupulus

Definition
The scrupulus is a unit of mass that was part of the Roman system of weights.
 * $1$ scrupulus $= \dfrac 1 {24}$ uncia $= 8$ calci.

Its value in modern units is estimated to be approximately $17.6$ grains, or approximately $0.14$ grams.

Also see

 * Definition:Scruple