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Related to extraembryonic: extraembryonic membranes


Of or being a structure that is outside the embryo: extraembryonic membranes.
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.


(Biology) biology outside the embryo
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌɛk strəˌɛm briˈɒn ɪk)

1. situated outside the embryo.
2. pertaining to structures that lie outside the embryo.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
At least one species of nudibranch incorporates a defensive allomone into its benthic spawn mass (12), although the location within eggs or extraembryonic investments is unknown.
Extraembryonic tissues are an important source of stem cells and natural scaffolds.
Cloning and characterization of HLC-32, a 32-kDa protein compouent of the sea urchin extraembryonic matrix, the hyaline layer.
This was revealed through reports which showed that hESCs, grown in serum-free media supplemented with FGF2, were induced by BMP4 to differentiate into a different extraembryonic lineage, the trophoblast [95], or spontaneously differentiate into extraembryonic endoderm-like cells due to BMP2 [96].
Grosveld, "The transcription factor GATA6 is essential for early extraembryonic development," Development, vol.
Extraembryonic membranes, such as the fish chorion, provide a protective barrier between the embryo and the environment.
Each plate contains 42 assays related to the transcription factors associated with stem cell pluripotency, self-renewal, cell proliferation, and extraembryonic, endodermal, mesodermal, and ectodermal lineage differentiation.
The structure of the extraembryonic matrices around the embryos and larvae of Patiriella exigua (Asteroidea) and their role in benthic development, a comparison with the planktonic larvae of P.
Teratocarcinomas contain early embryo-like cells called embryonal carcinoma cells (ECCs) that share three distinct features: (1) they are malignant; (2) they can differentiate into any of the three germ layers or extraembryonic tissue; and (3) they can develop normally when injected into the blastocyst [21, 22].
In human ESCs, OCT4 maintains an embryonic stem cell state and represses extraembryonic differentiation, while SOX2 is required to suppress the differentiation towards the mesendodermal [50].
Totipotent cells can give rise to the whole organism; pluripotent cells (iPSC, such as embryonic stem (ES) cells) can give rise to every cell type of an organism except its extraembryonic tissues, such as the placenta.