Definition of "uncia"

(historical) The Roman ounce, 1/12 of a Roman pound.

(historical) The Roman inch, 1/12 of a Roman foot.

(historical) A bronze coin minted by the Roman Republic, 1/12 of an as.

(historical) A Roman unit of land area, 1/12 of a jugerum.

(pharmacy) Synonym of ounce, the English and American avoirdupois unit of mass.  examples

Synonym of twelfth.  examples

(algebra, obsolete) A numerical coefficient in a binomial.