Definition of blastoderm in English:

blastoderm

noun ˈblastə(ʊ)dəːmˈblæstəˌdərm

Embryology

A blastula having the form of a disc of cells on top of the yolk.
Example sentencesExamples
- When the membranes surrounding the peripheral nuclei fuse to form the 6000 cells of the cellular blastoderm, they enclose 175-225 polyploid yolk nuclei within a large syncytial yolk cell.
- Pole cells cease dividing after the formation of the cellular blastoderm.
- When the egg is laid, the blastoderm contains several hundred cells.
- At cellular blastoderm most of the EAR protein is associated with cells at the periphery, while some protein is still associated with yolk nuclei.
- As a result, the blastodisc on the yolk becomes a blastoderm.

Definition of blastoderm in US English:

blastoderm

nounˈblæstəˌdərmˈblastəˌdərm

Embryology

1The layer of embryonic tissue that forms prior to the development of the embryonic axis.
Example sentencesExamples
- In the fruit fly, segments are genetically delimitated early and simultaneously, when the embryo still is a blastoderm and the process of segmentation does not involve somites.
- Early development is essentially two-dimensional; patterning occurs mainly in the blastoderm, the superficial layer of the embryo that consists first of nuclei and later of cells.
- We examined Fumble staining during the mitotic divisions of the cellular blastoderm.
- Apparently, there is little similarity between the simultaneous subdivision of the blastoderm into parasegments seen in Drosophila and the posterior addition of segments from a sub-terminal growth zone seen in many crustaceans.
1. 1.1 The outer layer of cells that forms the wall of a blastula.
  Example sentencesExamples
  At cellular blastoderm most of the EAR protein is associated with cells at the periphery, while some protein is still associated with yolk nuclei.
  When the membranes surrounding the peripheral nuclei fuse to form the 6000 cells of the cellular blastoderm, they enclose 175-225 polyploid yolk nuclei within a large syncytial yolk cell.
  As a result, the blastodisc on the yolk becomes a blastoderm.
  When the egg is laid, the blastoderm contains several hundred cells.
  Pole cells cease dividing after the formation of the cellular blastoderm.

单词	blastoderm
释义	Definition of blastoderm in English: blastoderm noun ˈblastə(ʊ)dəːmˈblæstəˌdərm Embryology A blastula having the form of a disc of cells on top of the yolk. Example sentencesExamples When the membranes surrounding the peripheral nuclei fuse to form the 6000 cells of the cellular blastoderm, they enclose 175-225 polyploid yolk nuclei within a large syncytial yolk cell. Pole cells cease dividing after the formation of the cellular blastoderm. When the egg is laid, the blastoderm contains several hundred cells. At cellular blastoderm most of the EAR protein is associated with cells at the periphery, while some protein is still associated with yolk nuclei. As a result, the blastodisc on the yolk becomes a blastoderm. Definition of blastoderm in US English: blastoderm nounˈblæstəˌdərmˈblastəˌdərm Embryology 1The layer of embryonic tissue that forms prior to the development of the embryonic axis. Example sentencesExamples In the fruit fly, segments are genetically delimitated early and simultaneously, when the embryo still is a blastoderm and the process of segmentation does not involve somites. Early development is essentially two-dimensional; patterning occurs mainly in the blastoderm, the superficial layer of the embryo that consists first of nuclei and later of cells. We examined Fumble staining during the mitotic divisions of the cellular blastoderm. Apparently, there is little similarity between the simultaneous subdivision of the blastoderm into parasegments seen in Drosophila and the posterior addition of segments from a sub-terminal growth zone seen in many crustaceans. 1.1 The outer layer of cells that forms the wall of a blastula. Example sentencesExamples At cellular blastoderm most of the EAR protein is associated with cells at the periphery, while some protein is still associated with yolk nuclei. When the membranes surrounding the peripheral nuclei fuse to form the 6000 cells of the cellular blastoderm, they enclose 175-225 polyploid yolk nuclei within a large syncytial yolk cell. As a result, the blastodisc on the yolk becomes a blastoderm. When the egg is laid, the blastoderm contains several hundred cells. Pole cells cease dividing after the formation of the cellular blastoderm.
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