Level 6 · word 16,526 of 20,000

patina

/pəˈtiːnə/ American
  • n. 绿锈, 光泽, 古色
Definition
  • n. a thin surface layer formed with age, such as a green coating on metal or a mellow sheen
Example
The old copper roof developed a green patina over many years.
这座老铜屋顶经过多年氧化,表面形成了一层绿色的铜锈。