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hypoblast

[ hahy-puh-blast ]

noun

, Embryology.
  1. the endoderm.
  2. the cells entering into the inner layer of a young gastrula, capable of becoming endoderm and, to a certain extent, mesoderm.


hypoblast

/ ˈhaɪpəˌblæst /

noun

  1. Also calledendoblast embryol the inner layer of an embryo at an early stage of development that becomes the endoderm at gastrulation
  2. a less common name for endoderm
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Derived Forms

  • ˌhypoˈblastic, adjective
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Other Words From

  • hypo·blastic adjective
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Word History and Origins

Origin of hypoblast1

First recorded in 1820–30; hypo- + -blast
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Example Sentences

To form the hypoblast a certain number of the cells of the lower layer begin to undergo remarkable changes.

It occurs by a direct conversion, cell for cell, of the white yolk spheres into hypoblast cells.

The growth of the hypoblast takes place in a very different way.

I have already spoken of the gradation of the hypoblast at the edge of the blastoderm into white yolk.

The mesoblast cells are in contact with both hypoblast and epiblast, and appear to be fused with the latter.

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