D defs.my
Entry 2 senses Webster, 1913

patina

/(păt"ĭ*nȧ; It. pä"tē̇*nȧ)/ · pat·ina · IPA /pəˈtiː.nə/
01 n. A dish or plate of metal or earthenware; a patella.
  1. 1.
    A dish or plate of metal or earthenware; a patella.
  2. 2.
    The color or incrustation which age gives to works of art; especially, the green rust which covers ancient bronzes, coins, and medals.(Fine Arts)