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American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Zoology) embryol Also called: endoblast the inner layer of an embryo at an early stage of development that becomes the endoderm at gastrulation
2. (Zoology) a less common name for endoderm
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. the endoderm of an embryo.
2. the cells entering into the inner layer of a young gastrula, capable of becoming endoderm and, to some extent, mesoderm.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||hypoblast - the inner germ layer that develops into the lining of the digestive and respiratory systems|
germ layer - (embryology) any of the 3 layers of cells differentiated in embryos following gastrulation
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