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

In case of horns of cattle, which when inherited must depend on germinal vesicle, obviously no effect till cattle full-grown.

From The Foundations of the Origin of Species Two Essays written in 1842 and 1844 by Darwin, Francis, Sir

The germinal vesicle is so simple that it may be defined in a line.

From Essays: Scientific, Political, & Speculative, Vol. I by Spencer, Herbert

They are nucleated cells, the nucleus going by the special name of the germinal vesicle and the nucleolus the germinal spot.

From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)

It has always the same globular shape; the same characteristic membrane; the same transparent germinal vesicle with its dark germinal spot.

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

The protoplasm of the ovum, except at that part of the surface where the germinal vesicle lies, is packed with a great amount of food material, the yolk granules.

From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)