from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A basic carbonate mineral of copper and zinc.
from the GNU version of the Collaborative International Dictionary of English
- n. A hydrous carbonate of copper and zinc, found in pale green or blue crystalline aggregations. It yields a kind of brass on reduction.
from The Century Dictionary and Cyclopedia
- n. A hydrous carbonate of copper and zinc occurring in transparent verdigris-green to sky-blue needle-shaped crystals, also in laminated or granular masses.
This definition is lacking an etymology or has an incomplete etymology. You can help Wiktionary by giving it a proper etymology. From an ancient term for brass. Compare orichalcum. (Wiktionary)