germinal vesicle

American  

noun

Embryology.

1. the large, vesicular nucleus of an ovum before the polar bodies are formed.

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germinal vesicle British  

noun

1. biology the large nucleus of an oocyte before it develops into an ovum

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Etymology

Origin of germinal vesicle

First recorded in 1850–55

Example Sentences

The ovule is a minute cell with a transparent membrane, within which is the yolk containing the germinal vesicle.

From The Four Epochs of Woman's Life; a study in hygiene by Galbraith, Anna M. (Anna Mary)

The germinal vesicle is so simple, that a line will contain all that can be said of it.

From Evolution, Old & New Or, the Theories of Buffon, Dr. Erasmus Darwin and Lamarck, as compared with that of Charles Darwin by Butler, Samuel

Cock's tread, "The opaque speck or germinal vesicle in the surface of the yolk in an impregnated egg."

From The Closet of Sir Kenelm Digby Knight Opened by MacDonell, Anne

These began in 1875 and following years with a careful examination of the behaviour of the germinal vesicle in the maturation and fertilization of the ovum.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" by Various

In the upper part of the yelk is the transparent round germinal vesicle, which corresponds to the nucleus.

From The Evolution of Man — Volume 1 by Haeckel, Ernst Heinrich Philipp August