/ Dictionary / Index M mineralogy: Meaning and Definition of Find definitions for: min•er•al•o•gy Pronunciation: (min"u-rol'u-jē, -ral'u-), [key] — n. the science or study of minerals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mineralogy (Thesaurus) mineralocorticoid mineraloid Related Content Daily Word Quiz: abdicate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language