/ Dictionary / Index A adularia: Meaning and Definition of Find definitions for: ad•u•lar•i•a Pronunciation: (aj"u-lâr'ē-u), [key] — n. Mineral. a sometimes opalescent variety of orthoclase formed at a low temperature. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. adularescent adulate Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language