Open English Wordnet
Nouns
(n)patinaa fine coating of oxide (produced by oxidation over a long period of time) on the surface of a metal (particularly copper) (n)patinaan acquired change in the appearance of something (other than metal or wood)“a patina of frost”,
“a patina of good breeding” (n)patinaa gloss or sheen on wooden furniture produced by age, polishing, or handling