animal pole

American  

noun

Biology.

1. the formative part of an ovum, having the greatest amount of cytoplasm and containing the nucleus.

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Etymology

Origin of animal pole

First recorded in 1885–90

Example Sentences

The yolk is pale green, and the animal pole is brown.

From Project Gutenberg

All the eggs are viewed from the animal pole.

From Project Gutenberg

The diagrams show the positions of the segmentation spheres and of the contained nuclei as seen from the animal pole.

From Project Gutenberg

After the ovum has finished its growth, and elaborated the yolk within itself, a peculiar change occurs in the small area free from yolk-- the animal pole, in which the germinal vesicle lies.

From Project Gutenberg

A furrow cutting deeper and deeper divides it into two; another follows at right angles to this, making the two four, and another equatorial furrow cuts off the animal pole from the yolk or vegetative pole.

From Project Gutenberg