[ hahy-puh-blast ]
/ ˈhaɪ pəˌblæst /

noun Embryology.

the endoderm.
the cells entering into the inner layer of a young gastrula, capable of becoming endoderm and, to a certain extent, mesoderm.

Origin of hypoblast

First recorded in 1820–30; hypo- + -blast

Related forms

hy·po·blas·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hypoblast

British Dictionary definitions for hypoblast


/ (ˈhaɪpəˌblæst) /


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

Derived Forms

hypoblastic, 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

Medicine definitions for hypoblast


[ hīpə-blăst′ ]



Related forms

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