uncia: Meaning and Definition of

un•ci•a

Pronunciation: (un'shē-u), [key]
— pl. -ci•ae
  1. a bronze coin of ancient Rome, the 12th part of an as.
  2. (in prescriptions) an ounce of weight or volume.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.