Scruple (unit)

The scruple () is a small unit in the apothecaries' system,[1] derived from the old Roman scrupulum (lit.'small pebble') unit[2] (scrupulus/scrupulum).

  1. ^ Cardarelli, François (2003). Encyclopaedia of Scientific Units, Weights and Measures. London: Springer. pp. 38, 45. ISBN 978-1-4471-1122-1.
  2. ^ "scruple, n.1", Oxford English Dictionary, 1st ed., Oxford: Oxford University Press, 1911

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