mesoblast

American  

[mez-uh-blast, mes-, mee-zuh-, -suh-] / ˈmɛz əˌblæst, ˈmɛs-, ˈmi zə-, -sə- /

noun

Embryology.

1. the mesoderm.

2. the primordial middle layer of a young embryo before the segregation of the germ layers, capable of becoming the mesoderm.

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mesoblast British  

/ ˈmɛsəʊˌblæst /

noun

1. another name for mesoderm

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Other Word Forms

• mesoblastic adjective

Etymology

Origin of mesoblast

First recorded in 1855–60; meso- + -blast

Example Sentences

Dorsal to this, in 6, comes a space lined by somatic mesoblast, and continuous with p.p., the pleuro-peritoneal cavity, or body cavity of the embryo.

From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)

Mesoblast, in the development of the cœlomata, or three-layered multicellular animals; a third set of cells, the mesoblast, arises between the epiblast and hypoblast, xviii.

From The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development by Hertwig, Oscar

The enamel is derived from the outer layer of the embryonic dog-fish, the epiblast, which also gives rise to the epidermis; while the dentine and bony base arise in the underlying mesoblast, the dermis.

From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)

These are much thicker than in the oesophagus; in the mesoblast which 18 forms the greater part of their thickness, muscle fibers are beginning to differentiate.

From Development of the Digestive Canal of the American Alligator by Reese, C. M.

They increase with great rapidity, the inner sac or mesoblast becoming sometimes so crowded with them, that its shape is affected by the protrusion of their angles.

From The Atlantic Monthly, Volume 10, No. 61, November, 1862 by Various