Definition of gastraea
The word gastraea uses 8 letters: a, a, a, e, g, r, s, t
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Scrabble UK9
Meanings of gastraea
n. - 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 Gastraea theory of Haeckel. See Gastrula.
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