vitellus

Example Sentences

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This vitellus or yolk undergoes a series of segmentation or dividings which are known as spontaneous segmentation.

From What a Young Husband Ought to Know by Stall, Sylvanus

Yolk, yōk, Yelk, yelk, n. the yellow part of an egg: the vitellus of a seed: wool-oil.—adjs.

From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various

As a consequence of this superficial concentration we get segmentation of the vitellus, with the production of a morula.

From The Mechanism of Life by Leduc, Stéphane

Within the shell the animal portion of the egg is found; which consists of a viscous, colorless liquid called albumen, or the white, and a yellow globular mass called the vitellus, or yolk.

From Donahoe's Magazine, Volume XV, No. 3 Volume XV (Jan 1886-Jul 1886) by Various

The vitellus and the membrane of the egg enlarge with the embryo and absorb by endosmosis the nutritive matter necessary for the latter, contained in the maternal blood.

From The Sexual Question A Scientific, psychological, hygienic and sociological study by Forel, Auguste