blastoderm

[ blas-tuh-durm ]

nounEmbryology.
  1. the primitive layer of cells that results from the segmentation of the ovum.

  2. the layer of cells forming the wall of the blastula, and in most vertebrates enclosing a cavity or a yolk mass.

Origin of blastoderm

1
First recorded in 1855–60; blasto- + -derm

Other words from blastoderm

  • blas·to·der·mic, blas·to·der·mat·ic, adjective

Words Nearby blastoderm

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How to use blastoderm in a sentence

British Dictionary definitions for blastoderm

blastoderm

/ (ˈblæstəʊˌdɜːm) /


nounembryol
  1. the layer of cells that surrounds the blastocoel of a blastula

  2. a flat disc of cells formed after cleavage in a heavily yolked egg, such as a bird's egg

  • Also called: blastodisc

Derived forms of blastoderm

  • blastodermic, adjective

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