blastodisk








noun Embryology.

  1. the blastula that forms as a flattened sphere on top of the yolk in the yolk-laden eggs of birds and reptiles.

n.

  1. The disk of active cytoplasm at the animal pole of a telolecithal egg.
  2. The blastoderm, especially in very early stages when its extent is small.
52 queries 0.529