n.
Pronunciation: ' blas-ch ə -l ə
Function: noun
Inflected Form: plural -las or -lae \ - ˌ l ē \
Etymology: New Latin, from Greek blastos bud ― more at -BLAST
Date: 1879
: an early metazoan embryo typically having the form of a hollow fluid-filled rounded cavity bounded by a single layer of cells ― compare GASTRULA , MORULA
– blas · tu · la · tion \ ˌ blas-ch ə - ' l ā -sh ə n \ noun
section of blastula: c blastocoel, ma macromere, mi micromere, a animal pole, v vegetal pole