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blastoderm n. 胚盘 胚盘 blastoderm n 1: a layer of cells on the inside of the blastula [synonym: {blastoderm}, {germinal disc}, {blastodisc}, {germinal area}] Blastoderm \Blas"to*derm\, n. [Gr. blasto`s sprout E. derm.]
(Embryology) the early stage of an embryo after the first cleavages of the ovum; also, the layer of cells of which the early embryo is composed; specifically: (a) the early embryo developing from a blastodisc, after the blastocoel has formed. (b) in an insect embryo, the layer of cells that surrounds the internal mass of the yolk. [PJC] Blastodermatic
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