• synonyms


[ih-kloh-zhuh n]
noun Entomology.
  1. the emergence of an adult insect from its pupal case.
  2. the hatching of a larva from its egg.
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Origin of eclosion

1885–90; < French éclosion, equivalent to éclos (past participle of éclore to hatch < Vulgar Latin *exclaudēre, for Latin exclūdēre to hatch, exclude) + -ion -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for eclosion

Historical Examples

  • The chrysalids under the sod, their eclosion time completed, were coming into their own—bringing perfection with them.

    Pet Farm

    Roger Dee

British Dictionary definitions for eclosion


  1. the emergence of an insect larva from the egg or an adult from the pupal case
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Word Origin

C19: from French éclosion, from éclore to hatch, ultimately from Latin exclūdere to shut out, exclude
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012