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vitellus

American  
[vi-tel-uhs, vahy-] / vɪˈtɛl əs, vaɪ- /

noun

vitelluses plural
  1. the yolk of an egg.


vitellus British  
/ vɪˈtɛləs /

noun

  1. rare zoology the yolk of an egg

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of vitellus

Borrowed into English from Latin around 1720–30

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.

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

"The ovarian eggs of all animals are identical, small cells with vitellus, germinal vesicle and germinal spot."

From Facts and Arguments for Darwin by Muller, Fritz

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

The literal references to the foregoing are: am, amnion; al, allantois; v, vitellus; h, encephalon; i, eye; c, heart; f, liver; g, gizzard; ms, upper, and mi, lower member.

From Was Man Created? by Mott, Henry A. (Henry Augustus)

Si vero fuerit in aestate vitellus avi semper superponatur.

From Gilbertus Anglicus Medicine of the Thirteenth Century by Handerson, Henry Ebenezer

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