/ Dictionary / Index M Malpighian tuft: Meaning and Definition of Find definitions for: Malpigh'ian tuft' Pronunciation: [key] glomerulus (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Malpighian tube malposition Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language