/ Dictionary / Index L labradorite: Meaning and Definition of Find definitions for: lab•ra•dor•ite Pronunciation: (lab'ru-dô-rīt", lab"ru-dôr'īt), [key] — n. a feldspar mineral of the plagioclase group, often characterized by a brilliant change of colors, with blue and green most common. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Labradorean Labrador retriever Related Content Daily Word Quiz: inane Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language