Usually means: Hypothetical ancestor, multicellular organism stage.
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We found 12 dictionaries that define the word Gastraea:

General (11 matching dictionaries)
  1. gastraea: Merriam-Webster
  2. gastraea: Collins English Dictionary
  3. Gastraea, gastraea: Wordnik
  4. gastraea: Wiktionary
  5. gastraea: Webster's New World College Dictionary, 4th Ed.
  6. Gastraea, gastraea: Dictionary.com
  7. Gastraea: Wikipedia, the Free Encyclopedia
  8. Gastraea: Online Plain Text English Dictionary
  9. Gastraea: AllWords.com Multi-Lingual Dictionary
  10. gastraea: FreeDictionary.org
  11. Gastraea: TheFreeDictionary.com

Medicine (1 matching dictionary)
  1. online medical dictionary (No longer online)

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Definitions from Wiktionary (gastraea)

▸ noun:  (biology, obsolete) A hypothetical animal form assumed by Ernst Haeckel as the ancestor of all metazoic animals.

Similar:
urmetazoan, gastrioceratid, archimollusc, paragastrioceratid, euarchontoglire, hypogastrurid, gaudryceratid, gephyrostegid, polygastrica, euthycarcinoid, more...

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Similar:
urmetazoan, gastrioceratid, archimollusc, paragastrioceratid, euarchontoglire, hypogastrurid, gaudryceratid, gephyrostegid, polygastrica, euthycarcinoid, more...



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