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

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)

The segmentation is of the mesoblast to begin with, and appears later behind the mouth, the part anterior to this becoming the prostomium of the adult.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" by Various

It is due to an arrest of development, whereby the closure of the primary medullary groove and the ingrowth of the mesoblast to form the spines and laminæ fail to take place.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Miles, Alexander

They distinguished in the middle layer two quite distinct elements, the mesoblast proper, formed by the evagination of the walls of the archenteron, and the mesenchyme, formed by free cells budded off from the germ-layers.

From Form and Function A Contribution to the History of Animal Morphology by E. S. (Edward Stuart) Russell

A suffix or terminal formative, used principally in biological terms, and signifying growth, formation; as, bioblast, epiblast, mesoblast, etc.

From Webster's Unabridged Dictionary (2nd 100 Pages) by Webster, Noah