单词 | germ layer |
释义 | germ layernounone of the three primary embryonic cell layers. Compare ectoderm, endoderm, mesoderm. Origin of germ layerFirst recorded in 1875–80 Words nearby germ layergermination, germinative, germinative layer, germinoma, Germiston, germ layer, germ line, germline insertion, germ membrane, germ plasm, germproof Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for germ layerBritish Dictionary definitions for germ layergerm layer nounembryol any of the three layers of cells formed during gastrulationSee ectoderm, mesoderm, endoderm 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 germ layergerm layer n.Any of the three primary cellular layers, the ectoderm, endoderm, or mesoderm, into which most animal embryos differentiate and from which the organs and tissues of the body develop. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for germ layergerm layer Any of three cellular layers, the ectoderm, endoderm, or mesoderm, into which most animal embryos differentiate in the gastrula stage and from which the organs and tissues of the body develop through further differentiation. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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