Dictionary
gibbs•ite
Pronunciation: (gib'zīt), [key]—
n.
a mineral, hydrated aluminum oxide, Al
2O
3•3H
2O, occurring in whitish or grayish crystals and masses: an important constituent of bauxite ore.
Also called hydrargillite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.