from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A zeolite mineral with the chemical formula CaAl2Si2O8·4(H2O).
from the GNU version of the Collaborative International Dictionary of English
- n. A native hydrated silicate of alumina, lime, and potash, first noticed near Rome.
from The Century Dictionary and Cyclopedia
- n. A mineral which is a hydrous silicate of aluminium and calcium, found near Rome in white translucent octahedral crystals.
Carlo Giuseppe Gismondi (1762-1824), Italian mineralogist, and -ine. (Wiktionary)