/ Dictionary / Index E enteropneust: Meaning and Definition of Find definitions for: en•ter•op•neust Pronunciation: (en'tu-rup-nst", -nyst"), [key] — n. any of various invertebrate animals of the class Enteropneusta, comprising the acorn worms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. enteropathy enterostomy Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language