copperas
/'kɒpәrәs/
📖 中文释义
- n. 绿矾
- [化] 绿矾; 水绿矾; 皂矾(天然结晶硫酸亚铁)
🔗 释义中的汉语词
📘 English Definition（英文释义）
- n. Green vitriol, or sulphate of iron; a green crystalline
- substance, of an astringent taste, used in making ink, in dyeing black,
- as a tonic in medicine, etc. It is made on a large scale by the
- oxidation of iron pyrites. Called also ferrous sulphate.