mesoderm

[ mez-uh-durm, mes-, mee-zuh-, -suh- ]

/ ˈmɛz əˌdɜrm, ˈmɛs-, ˈmi zə-, -sə- /

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noun Embryology.

the middle germ layer of a metazoan embryo.

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Origin of mesoderm

First recorded in 1870–75; meso- + -derm

OTHER WORDS FROM mesoderm

mes·o·der·mal, mes·o·der·mic, adjective

Words nearby mesoderm

mesocolopexy, mesocord, mesocranic, mesocratic, mesocyclone, mesoderm, mesodiastolic, mesodont, mesodontism, mesoduodenum, mesoepididymis

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use mesoderm in a sentence

Ahlborn, in 1884, drew a sharp distinction between the segments of the mesoderm and those of the endoderm.
The Origin of Vertebrates|Walter Holbrook Gaskell
Then came two segments, the mandibular, in which muscles are formed both from the ventral and from the dorsal mesoderm-segments.
The Origin of Vertebrates|Walter Holbrook Gaskell
The mesoderm is, if we may judge from the number of organs which are derived from it, much the most important of the three layers.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3|Various
But in some groups the mesoderm is actually laid down in cleavage, and is present at the end of that process.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3|Various

The former is called simply epithelial mesoderm, the latter mesenchyme.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3|Various

British Dictionary definitions for mesoderm

mesoderm

/ (ˈmɛsəʊˌdɜːm) /

noun

the middle germ layer of an animal embryo, giving rise to muscle, blood, bone, connective tissue, etcSee also ectoderm, endoderm

Derived forms of mesoderm

mesodermal or mesodermic, adjective

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

Medical definitions for mesoderm

mesoderm

[ mĕz′ə-dûrm′ ]

The middle embryonic germ layer, lying between the ectoderm and the endoderm, from which connective tissue, muscle, bone, and the urogenital and circulatory systems develop.

Other words from mesoderm

mes′o•der′mic adj.

Scientific definitions for mesoderm

mesoderm

[ mĕz′ə-dûrm′ ]

The middle of the three primary germ layers of the embryos of vertebrates and other complex animals. In vertebrates, the mesoderm gives rise to the muscles, bones, cartilage, connective tissue, blood, blood and lymph vessels, dermis, kidneys, and gonads. The mesoderm develops during gastrulation from either the ectoderm or the endoderm. The embryos of simpler animals lack a mesoderm. Compare ectoderm endoderm.