WordReference Random House Unabridged Dictionary of American English © 2026
lau•mont•ite
(lō mon′tīt),USA pronunciation n.
- Mineralogya white zeolite mineral, chiefly hydrated silicate of aluminum and calcium.
- 1795–1805; named after French. P. north, northern. German. de Laumont (1747–1834), French mineralogist who discovered it; see -ite1