• synonyms


noun Embryology.
  1. the endoderm.
  2. the cells entering into the inner layer of a young gastrula, capable of becoming endoderm and, to a certain extent, mesoderm.
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Origin of hypoblast

First recorded in 1820–30; hypo- + -blast
Related formshy·po·blas·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for hypoblast

Historical Examples of hypoblast

British Dictionary definitions for hypoblast


  1. Also called: endoblast embryol the inner layer of an embryo at an early stage of development that becomes the endoderm at gastrulation
  2. a less common name for endoderm
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Derived Formshypoblastic, 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

hypoblast in Medicine


  1. endoderm
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Related formshy′po•blastic adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.