blastoderm

[ blas-tuh-durm ]

/ ˈblæs təˌdɜrm /

noun Embryology.

the primitive layer of cells that results from the segmentation of the ovum.

the layer of cells forming the wall of the blastula, and in most vertebrates enclosing a cavity or a yolk mass.

Origin of blastoderm

First recorded in 1855–60; blasto- + -derm

OTHER WORDS FROM blastoderm

blas·to·der·mic, blas·to·der·mat·ic, adjective

Words nearby blastoderm

blastochyle, blastocoel, blastocyst, blastocyte, blastocytoma, blastoderm, blastodermic vesicle, blastodisc, blastodisk, blastoff, blastogenesis

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for blastoderm

It is shewn in fig. 30 A, where bl points to the blastoderm, and yk to the part of the yolk not yet covered by the blastoderm.
The Works of Francis Maitland Balfour, Volume III (of 4)|Francis Maitland Balfour
The nuclei of the blastoderm cells, both of the epiblast and lower layer, have a uniform structure.
The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour
Transverse sections shew that considerable changes have been effected in the constitution of the blastoderm.
The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour
The blastoderm thus rests upon a mass of finely granular material, from which, however, it is sharply separated.
The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour

At the same time a median depression appears dividing the blastoderm longitudinally into two halves.
The Works of Francis Maitland Balfour, Volume II (of 4)|Francis Maitland Balfour

British Dictionary definitions for blastoderm

blastoderm

/ (ˈblæstəʊˌdɜːm) /

noun embryol

the layer of cells that surrounds the blastocoel of a blastula

a flat disc of cells formed after cleavage in a heavily yolked egg, such as a bird's egg

Also called: blastodisc

Derived forms of blastoderm

blastodermic, 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

Medical definitions for blastoderm

blastoderm

[ blăs′tə-dûrm′ ]

n.

The layer of cells formed by the cleavage of a fertilized mammalian egg, which later divides into the three germ layers from which the embryo develops.germinal membrane germ membrane

Other words from blastoderm

blas′to•der′mal null null adj.

单词	blastoderm
释义	blastoderm [ blas-tuh-durm ] / ˈblæs təˌdɜrm / noun Embryology. the primitive layer of cells that results from the segmentation of the ovum. the layer of cells forming the wall of the blastula, and in most vertebrates enclosing a cavity or a yolk mass. Origin of blastoderm First recorded in 1855–60; blasto- + -derm OTHER WORDS FROM blastoderm blas·to·der·mic, blas·to·der·mat·ic, adjective Words nearby blastoderm blastochyle, blastocoel, blastocyst, blastocyte, blastocytoma, blastoderm, blastodermic vesicle, blastodisc, blastodisk, blastoff, blastogenesis Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for blastoderm It is shewn in fig. 30 A, where bl points to the blastoderm, and yk to the part of the yolk not yet covered by the blastoderm. The Works of Francis Maitland Balfour, Volume III (of 4)\|Francis Maitland Balfour The nuclei of the blastoderm cells, both of the epiblast and lower layer, have a uniform structure. The Works of Francis Maitland Balfour, Volume 1\|Francis Maitland Balfour Transverse sections shew that considerable changes have been effected in the constitution of the blastoderm. The Works of Francis Maitland Balfour, Volume 1\|Francis Maitland Balfour The blastoderm thus rests upon a mass of finely granular material, from which, however, it is sharply separated. The Works of Francis Maitland Balfour, Volume 1\|Francis Maitland Balfour At the same time a median depression appears dividing the blastoderm longitudinally into two halves. The Works of Francis Maitland Balfour, Volume II (of 4)\|Francis Maitland Balfour British Dictionary definitions for blastoderm blastoderm / (ˈblæstəʊˌdɜːm) / noun embryol the layer of cells that surrounds the blastocoel of a blastula a flat disc of cells formed after cleavage in a heavily yolked egg, such as a bird's egg Also called: blastodisc Derived forms of blastoderm blastodermic, 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 Medical definitions for blastoderm blastoderm [ blăs′tə-dûrm′ ] n. The layer of cells formed by the cleavage of a fertilized mammalian egg, which later divides into the three germ layers from which the embryo develops.germinal membrane germ membrane Other words from blastoderm blas′to•der′mal null null adj. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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