Uncia

Origin

1685–95, from Latin uncia (""). Compare inch, ounce, Latin ūnus ("one").

Noun

1. (classical studies) A twelfth part, an ounce, or an inch.
2. (pharmacy) An ounce.
3. A bronze coin minted during the Roman Republic, valued at one-twelfth of an as.
4. (algebra) A numerical coefficient in a case of the binomial theorem.