/ Dictionary / Index A andalusite: Meaning and Definition of Find definitions for: an•da•lu•site Pronunciation: (an"dl-'sīt), [key] — n. Mineral. an orthorhombic form of aluminum silicate, AlSiO, found in schistose rocks. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Andalusia Andaman Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language