germinal disk
Americannoun
Etymology
Origin of germinal disk
First recorded in 1875–80
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.
The circular border of the germinal disk which connects the roof and floor of the segmentation-cavity corresponds to the border-zone at the equator of the amphibian ovum.
From The Evolution of Man — Volume 1 by Haeckel, Ernst Heinrich Philipp August
Sometimes it has been called the germinal disk, sometimes the germinal spot, and usually the germinative area.
From The Evolution of Man — Volume 1 by Haeckel, Ernst Heinrich Philipp August
First is formed a lens-shaped circular germinal disk.
From The Evolution of Man — Volume 1 by Haeckel, Ernst Heinrich Philipp August
The tread, which thus becomes the germinal disk, now has the appearance of an eight-rayed star.
From The Evolution of Man — Volume 1 by Haeckel, Ernst Heinrich Philipp August
In both cases a discoid gastrula with primitive streak arises from the segmented ovum, a two-layered germinal disk with long and small hinder primitive mouth.
From The Evolution of Man — Volume 1 by Haeckel, Ernst Heinrich Philipp August
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.
