mesoderm
the middle germ layer of a metazoan embryo.
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Origin of mesoderm
1Other words from mesoderm
- mes·o·der·mal, mes·o·der·mic, adjective
Words Nearby mesoderm
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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 GaskellThen 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 GaskellThe mesoderm is, if we may judge from the number of organs which are derived from it, much the most important of the three layers.
But in some groups the mesoderm is actually laid down in cleavage, and is present at the end of that process.
The former is called simply epithelial mesoderm, the latter mesenchyme.
British Dictionary definitions for mesoderm
/ (ˈmɛsəʊˌdɜːm) /
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
Scientific definitions for 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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