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GASTRULA
Pronunciation (US): | (GB): |
Irregular inflected form: gastrulae
I. (noun)
Sense 1
Meaning:
Double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm
Classified under:
Hypernyms ("gastrula" is a kind of...):
conceptus; embryo; fertilized egg (an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life)
Meronyms (parts of "gastrula"):
archenteron (central cavity of the gastrula; becomes the intestinal or digestive cavity)