/ Dictionary / Index M millipede: Meaning and Definition of Find definitions for: mil•li•pede Pronunciation: (mil'u-pēd"), [key] — n. any terrestrial arthropod of the class Diplopoda, having a cylindrical body composed of 20 to more than 100 segments, each with two pairs of legs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: millipede (Thesaurus) millionth milliradian Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language