'patina' definitions:

Definition of 'patina'

From: WordNet
noun
A fine coating of oxide on the surface of a metal

Definition of 'patina'

From: GCIDE
  • patina \pat"ina\ (p[a^]t"[i^]*n[.a]; It. p[aum]"t[-e]*n[.a]), n. [It., fr. L. patina a dish, a pan, a kind of cake. Cf. Paten.]
  • 1. A dish or plate of metal or earthenware; a patella. [1913 Webster]
  • 2. (Fine Arts) The color or incrustation which age gives to works of art; especially, the green rust which covers ancient bronzes, coins, and medals. --Fairholt. [1913 Webster]