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.
Now, the human ovum or egg consists of a vitellus or yolk, which is covered by a similar membrane, known as the vitelline.
From What a Young Husband Ought to Know by Sylvanus Stall
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 Auguste Forel
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 Sylvanus Stall
"The ovarian eggs of all animals are identical, small cells with vitellus, germinal vesicle and germinal spot."
From Facts and Arguments for Darwin by Fritz Muller
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 John. B. Smith