Meaning of eclosion

e•clo•sion

Pronunciation: (i-klō'zhun), [key]
— n. Entomol.
  1. the emergence of an adult insect from its pupal case.
  2. the hatching of a larva from its egg.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.