01463519-n:
(embryology) any of the 3 layers of cells differentiated in embryos following gastrulation
Glosses
(gloss)
01458842-n:
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
Glosses
(gloss)
05267345-n:
part of an organism consisting of an aggregate of cells having a similar structure and function
