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This has led stone tool analysts in recent times to generally prefer the term "cortification" as a better term to describe the process than "patination". Stone develops a corticated layer over time that is due to a range of complex factors. The color or incrustation which age gives to works of art especially, the green rust which covers ancient bronzes, coins, and medals. a statement expressing the essential nature of something. Patina also refers to accumulated changes in surface texture and colour that result from normal use of an object such as a coin or a piece of furniture over time.Īrchaeologists study the patinas found on flint tools and ancient stone monuments. definition: noun a statement of the meaning of a word or word group or a sign or symbol. On metal, patina is a coating of various chemical compounds such as oxides, carbonates, sulfides, or sulfates formed on the surface during exposure to atmospheric elements. Over time, every material will develop a patina, meaning that wood, metal, stone and even paper will eventually show signs of one. They may also be aesthetically appealing. Patinas can provide a protective layer to materials that would otherwise be damaged by corrosion or weathering. AMP: noun a nucleotide C10H12N5O3H2PO4 composed of adenosine and one phosphate group that is reversibly convertible to ADP and ATP in metabolic reactions - called alsoRN adenosine monophosphate, adenylic acid compare cyclic amp. Patina is a tarnish that forms on the surface of copper, bronze and similar metals stone a sheen on wooden furniture produced by age, wear, and polishing or any such acquired change of a surface through age and exposure. patina synonyms, patina pronunciation, patina translation, English dictionary definition of patina. Freebase Rate this definition: 5.0 / 1 vote