n.
Pronunciation: ' blas-t ə - ˌ sist
Function: noun
Date: circa 1881
: the modified blastula of a placental mammal having an outer layer composed of the trophoblast
n.
Pronunciation: ' blas-t ə - ˌ sist
Function: noun
Date: circa 1881
: the modified blastula of a placental mammal having an outer layer composed of the trophoblast
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012