/ Dictionary / Index M mudlump: Meaning and Definition of Find definitions for: mud•lump Pronunciation: (mud'lump"), [key] — n. a small, short-lived island of clay or silt that forms within a river delta. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mudlark mudminnow Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language