/ Dictionary / Index A alunite: Meaning and Definition of Find definitions for: al•u•nite Pronunciation: (al'yu-nīt"), [key] — n. a mineral, a hydrous sulfate of potassium and aluminum, KAl(SO)(OH), commonly occurring in fine-grained masses. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Alundum alunogen Related Content Daily Word Quiz: taut Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language