/ Dictionary / Index E eclosion: Meaning and Definition of Find definitions for: e•clo•sion Pronunciation: (i-klō'zhun), [key] — n. Entomol. the emergence of an adult insect from its pupal case. the hatching of a larva from its egg. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Eclogues* ECM Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language