ALL meanings of blastodisk
blas·to·disk
B b - noun blastodisk germinal disk 3
- noun blastodisk the blastula that forms as a flattened sphere on top of the yolk in the yolk-laden eggs of birds and reptiles. 1
- noun blastodisk (biology) A round, flattened region of cells from which the embryo of many vertebrates begins to develop in the fertilized ovum; a germinal disk. 0