vitellus
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Vitelligenous: producing the vitellus or yolk: said of certain cells in the ovaries, believed to have that function.
From Explanation of Terms Used in Entomology by Smith, John. B.
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
Up to this point the vitellus of the egg, nourished by endosmosis through its membranes, had sufficed for the nutrition of the still very small embryo.
From The Sexual Question A Scientific, psychological, hygienic and sociological study by Forel, Auguste
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
Thus, in Fishes, the first changes consist in the segmentation of the vitellus and the formation of a germ, processes which are common to all classes of animals.
From Facts and Arguments for Darwin by Muller, Fritz
