- a bronze coin of ancient Rome, the 12th part of an as.
- (in prescriptions) an ounce of weight or volume.
Origin of uncia
Examples from the Web for unciae
Historical Examples of unciae
Another way is to take two unciae of ore, a semi-uncia of litharge, two drachmae of Venetian glass and a semi-uncia of saltpetre.
These "thorns" are apparently fairly rich, four unciae to the centumpondium being equivalent to about 97 ozs.
The Romans commonly used fractions with denominator 12; these were described as unciae (ounces), being twelfths of the as (pound).