blastodisk
Also found in: Dictionary, Thesaurus, Medical.
Related to blastodisk: blastoderm
blastodisk
[′blas·tə‚disk] (embryology)
The embryo-forming, protoplasmic disk on the surface of a yolk-filled egg, such as in reptiles, birds, and some fish.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.