patina

noun

1. (countable, uncountable)A paten, flat type of dish.
2. (countable, uncountable)The colour or incrustation which age and wear give to (mainly metallic) objects; especially, the green rust which covers works of art such as ancient bronzes, coins and medals.
3. (countable, uncountable)A green colour, tinted with grey, like that of bronze patina.
4. (countable, figuratively, uncountable)A gloss or superficial layer.

   “he enjoys a patina of respect by the police, despite being an ex-criminal”

   “It demonstrates how scientific authority could be constructed on the fly, as it were, by someone with no connections and no psychological credentials who offered a technique that had the patina of modern science[…]”

adj

1. (not-comparable)Of a green colour, tinted with grey, like that of bronze patina.