/ Dictionary / Index F filopodium: Meaning and Definition of Find definitions for: fil•o•po•di•um Pronunciation: (fil"u-pō'dē-um, fī"lu-), [key] — pl. -di•a a long, hairlike pseudopod composed of ectoplasm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. filoplume filose 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