Cite
 

Meaning of blastodisk

blas•to•disk

Pronunciation: (blas'tu-disk"), [key]
— n. Embryol.
  1. the blastula that forms as a flattened sphere on top of the yolk in the yolk-laden eggs of birds and reptiles.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.