/ Dictionary / Index R rhabdocoele: Meaning and Definition of Find definitions for: rhab•do•coele Pronunciation: (rab'du-sēl"), [key] — n. any member of the turbellarian flatworm order Neorhabdocoela, comprising both freshwater and marine species, having a simple saclike digestive system. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rhabdo- rhabdom Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language