About The Word Gastraea
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Gastraea
| Gastraea Definition And Meaning |
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What's The Definition Of Gastraea?Synonyms | Synonyms for Gastraea: Related Terms | Find terms related to Gastraea: See Also | Gastraea In Webster's Dictionary \Gas*tr[ae]"a\, n. [NL., from Gr. ?, ?, the stomach.]
(Biol.)
A primeval larval form; a double-walled sac from which,
according to the hypothesis of Haeckel, man and all other
animals, that in the first stages of their individual
evolution pass through a two-layered structural stage, or
gastrula form, must have descended. This idea constitutes the
Gastr[ae]a theory of Haeckel. See {Gastrula}.
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