patina

The definition of a patina is a crust or film, that happens from use or exposure to oxygen.

(noun)

  1. An example of a patina is a blueish-green film on aged copper.
  2. An example of a patina is a warm tone on silver after many years of use.

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See patina in Webster's New World College Dictionary

noun pl. patinae

paten

Origin: L

noun

  1. a fine crust or film on bronze or copper, usually green or greenish-blue, formed by natural oxidation and often valued as being ornamental
  2. any thin coating or color change resulting from age, as on old wood or silver

Origin: Fr < It, orig., tarnish (on a metal plate), prob. < L, pan: see patella

See patina in American Heritage Dictionary 4

noun pl. pat·i·nae (pătˈn-ē)
See paten.

Origin:

Origin: Medieval Latin

Origin: , from Latin, plate; see paten

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noun
  1. A thin greenish layer, usually basic copper sulfate, that forms on copper or copper alloys, such as bronze, as a result of corrosion.
  2. The sheen on any surface, produced by age and use.
  3. A change in appearance produced by long-standing behavior, practice, or use: a face etched with a patina of fine lines and tiny wrinkles.

Origin:

Origin: Italian

Origin: , from Latin, plate (from the incrustation on ancient metal plates and dishes); see paten

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