blastodisk

or blas·to·disc

[ blas-tuh-disk ]

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

Origin of blastodisk

1
First recorded in 1885–90; blasto- + disk

Words Nearby blastodisk

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024