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单词 θ18945
释义
the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > ovum or ootid > protoplasm or cytoplasm (3)
periblast1885

Embryology. An acellular layer of protoplasm lying between the blastomere and the yolk of a meroblastic egg.

ovoplasm1890

= ooplasm, n. 1.

ooplasm1899

Mycology. In an oomycete, esp. one of the order Peronosporales: the central portion of the oogonial cytoplasm, which becomes the oosphere.

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