noun \ˈblas-chə-lə\
plural -las or blas·tu·lae \-ˌlē\

Definition of BLASTULA

: 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·lar \-lər\ adjective
blas·tu·la·tion \ˌblas-chə-ˈlā-shən\ noun

Illustration of BLASTULA

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