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. See endoderm
   a less common name for endoderm

Derived Forms

• ˌhypoˈblastic, adjective

Other Words From

• hypo·blastic adjective

Word History and Origins

Origin of hypoblast¹

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

Example Sentences

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg