/ Dictionary / Index A Annelida: Meaning and Definition of Find definitions for: An•nel•i•da Pronunciation: (u-nel'i-du), [key] — n. the phylum comprising the annelids. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: annelida (Thesaurus) annelid Annensky Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language