1. singular noun
A patina is a thin layer of something that has formed on the surface of something. ⇒ The trophy is very impressive and rather special because it has a beautiful green patina. [+ of] ⇒ He allowed a fine patina of old coffee to develop around the inside of the mug.
2. singular noun The patina on an old object is an attractive soft shine that has developed on its surface, usually because it has been used a lot. [+ of] ⇒ ...a mahogany door that is golden brown with the patina of age. 3. singular noun If you say that someone has a patina of a quality or characteristic, you mean that they have a small but impressive amount of this quality or characteristic. [+ of] ⇒ ...a superficial patina of knowledge. ⇒ Except for a patina of charisma, he was like a thousand other bright young men in Toronto.
COBUILD Advanced English Dictionary. Copyright © Harper Collins Publishers