单词 | mesoderm |
释义 | mesoderm[ mez-uh-durm, mes-, mee-zuh-, -suh- ] / ˈmɛz əˌdɜrm, ˈmɛs-, ˈmi zə-, -sə- / noun Embryology.the middle germ layer of a metazoan embryo. Origin of mesodermFirst recorded in 1870–75; meso- + -derm OTHER WORDS FROM mesodermmes·o·der·mal, mes·o·der·mic, adjectiveWords nearby mesodermmesocolopexy, mesocord, mesocranic, mesocratic, mesocyclone, mesoderm, mesodiastolic, mesodont, mesodontism, mesoduodenum, mesoepididymis Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for mesodermBritish Dictionary definitions for mesodermmesoderm / (ˈmɛsəʊˌdɜːm) / nounthe middle germ layer of an animal embryo, giving rise to muscle, blood, bone, connective tissue, etcSee also ectoderm, endoderm Derived forms of mesodermmesodermal or mesodermic, adjectiveCollins 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 mesodermmesoderm [ mĕz′ə-dûrm′ ] n.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 mesodermmes′o•der′mic adj.The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for mesodermmesoderm [ 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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