释义 |
periblast
periblast (ˈpɛrɪˌblæst) n (Biology) biology the protoplasm surrounding the blastoderm in meroblastic eggsperiblast
periblast[′per·ə‚blast] (embryology) The nucleated layer of cytoplasm that surrounds the blastodisk of an egg undergoing discoidal cleavage. periblast
periblast [per´ĭ-blast] the portion of the blastoderm of a ovum" >telolecithal ovum, in which cells lack complete cell membranes.per·i·blast (per'i-blast), A specialized region of yolk surface immediately peripheral to the blastoderm in telolecithal eggs. [peri- + G. blastos, germ] periblast the tissue surrounding the BLASTODERM in meroblastic eggs. |