vegetal pole

American  

noun

Embryology.

1. the relatively inactive part of an ovum opposite the animal pole, containing much yolk and little cytoplasm.

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Etymology

Origin of vegetal pole

First recorded in 1895–1900

Example Sentences

At the lower or vegetal pole of the ovum a crown of eight large entodermic cells remains for a long time unchanged, while the other cells divide, owing to the formation of a series of horizontal circles, into an increasing number of crowns of sixteen cells each.

From Project Gutenberg

The vegetal pole of the vertical axis is just in the centre of the primitive mouth.

From Project Gutenberg

The primitive mouth, which at first, in the typical archigastrula, lay at the vegetal pole of the main axis, is forced away to the dorsal side; and whereas its two lips lay at first in a plane at right angles to the chief axis, they are now so far thrust aside that their plane cuts the axis at a sharp angle.

From Project Gutenberg

The first is the ANIMAL, and the second the VEGETAL, pole of the vertical axis of the ovum.

From Project Gutenberg

It has arisen through the accumulation of a store of food-stuff at the vegetal pole, a "nutritive yelk" being thus formed in contrast to the "formative yelk."

From Project Gutenberg