/ Dictionary / Index K kaolinite: Meaning and Definition of Find definitions for: ka•o•lin•ite Pronunciation: (kā'u-lu-nīt"), [key] — n. a very common mineral, hydrated aluminum disilicate, AlSiO(OH), formed by the alteration of other minerals, esp. feldspar: the most common constituent of kaolin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: kaolinite (Thesaurus) kaolin kaolinize Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language