Function: noun
Date: circa 1938
1 a : BLASTODISC b : BLASTODERM
2 : the part of the inner cell mass of a blastocyst from which the embryo of a placental mammal develops ― called also embryonic shield
EMBRYONIC DISK
Meaning of EMBRYONIC DISK in English
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012