from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A monoclinic-prismatic mineral containing copper, hydrogen, lead, oxygen, and sulfur.
from the GNU version of the Collaborative International Dictionary of English
- n. A hydrous sulphate of lead and copper occurring in bright blue monoclinic crystals.
from The Century Dictionary and Cyclopedia
- n. A hydrated sulphate of lead and copper, occurring in deep azure-blue monoclinic crystals.