This vitellus or yolk undergoes a series of segmentation or dividings which are known as spontaneous segmentation.
vitellus abdicated the Roman empire, which "he had received against his will."
As a consequence of this superficial concentration we get segmentation of the vitellus, with the production of a morula.
Vitelligenous: producing the vitellus or yolk: said of certain cells in the ovaries, believed to have that function.
Now, the human ovum or egg consists of a vitellus or yolk, which is covered by a similar membrane, known as the vitelline.
It is formed from the vitellus at a much later period than the proper vitelline membrane.
In Ascidia canina these processes become as long as the whole diameter of the vitellus (Kupffer, No. 60).
The yolk spherules I find to be first developed in a peripheral layer of the vitellus.
It has only been met with in the vitellus of some of the medium sized ova of a young female.
Vit′ellary, Vitell′ine, pertaining to the vitellus, or forming such.
vitellus vi·tel·lus (vĭ-těl'əs, vī-)
n. pl. vi·tel·lus·es
The yolk of an egg.