Gastraea
Word Dictionary
-> Gastraea
Search:
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 theory of Haeckel. See Gastrula.
Terms of Use
Canadian Jobs