from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A tetragonal-ditetragonal dipyramidal mineral containing carbon, chlorine, lead, and oxygen.
from the GNU version of the Collaborative International Dictionary of English
- n. A rare mineral occurring in tetragonal crystals of a white, yellow, or grayish color and adamantine luster. It is a chlorocarbonate of lead.
from The Century Dictionary and Cyclopedia
- n. A mineral consisting of the chlorid and carbonate of lead. It occurs in white or yellowish tetragonal crystals having an adamantine luster. Also called corneous lead.