blastoderm
Americannoun
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the primitive layer of cells that results from the segmentation of the ovum.
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the layer of cells forming the wall of the blastula, and in most vertebrates enclosing a cavity or a yolk mass.
noun
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the layer of cells that surrounds the blastocoel of a blastula
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a flat disc of cells formed after cleavage in a heavily yolked egg, such as a bird's egg
Other Word Forms
Etymology
Origin of blastoderm
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Such words as "blastoderm", "sindoc," "peris," "parasang," "sarcenet," "teazel," "nullah," "cantatrice," "barracan," "sistrum," writhed and hissed in her verses.
From Time Magazine Archive
Starting from Pander’s discovery of the trilaminate blastoderm, Remak worked out the development of the chick in the light of the cell-theory of Schleiden and Schwann.
From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" by Various
Ahlfeld says that this single blastoderm is split by pressure.
From Essays In Pastoral Medicine by Austin ?Malley
Elsewhere in the blastoderm they are distinctly separate.
From Text Book of Biology, Part 1: Vertebrata by H. G. (Herbert George) Wells
Embryonic tissue from the blastoderm of a chick.
From Text Book of Biology, Part 1: Vertebrata by H. G. (Herbert George) Wells
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
