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单词 blastula
释义
blas·tu·la (blăschə-lə)
n. pl. blas·tu·las or blas·tu·lae (-lē)
An early embryonic form produced by cleavage of a fertilized ovum and consisting of a spherical layer of cells surrounding a fluid-filled cavity. Also called blastosphere.

[New Latin : from Greek blastos, bud + Latin -ula, feminine diminutive suff.]

blastu·lar adj.
blastu·lation (-lāshən) n.
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更新时间:2025/3/22 10:34:10