[vi-tel-uh s, vahy-]
- the yolk of an egg.
Origin of vitellus
Borrowed into English from Latin around 1720–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for vitellus
Now, the human ovum or egg consists of a vitellus or yolk, which is covered by a similar membrane, known as the vitelline.
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."The Every Day Book of History and Chronology
Vitelligenous: producing the vitellus or yolk: said of certain cells in the ovaries, believed to have that function.Explanation of Terms Used in Entomology
John. B. Smith
It has only been met with in the vitellus of some of the medium sized ova of a young female.The Works of Francis Maitland Balfour, Volume 1
Francis Maitland Balfour
- zoology rare the yolk of an egg
C18: from Latin, literally: little calf, later: yolk of an egg, from vitulus calf
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
- The yolk of an egg.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.