| 释义 |
verdigris美 ['vɜrdɪ.ɡri] 英 ['vɜː(r)dɪɡriː] n. patina,tarnish,corrosion,greenness,coloration 1. | 铜绿，碱式碳酸铜（铜遇空气发生反应形成）the greenish substance which forms, for example on roofs, when copper reacts with the air |
n. | 1. a green or greenish blue deposit of copper carbonates on copper, brass, and bronze that is caused by atmospheric corrosion 2. a green or greenish blue poisonous powder formed by the action of acetic acid on copper and consisting of one or more basic copper acetates. 3. a green or green-blue substance that appears on the metal copper as a result of a reaction to the air |
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