vitellus

[ vi-tel-uhs, vahy- ]

noun

, plural vi·tel·lus·es.

1. the yolk of an egg.

vitellus

/ vɪˈtɛləs /

noun

1. rare.
   zoology the yolk of an egg

Word History and Origins

Origin of vitellus¹

Borrowed into English from Latin around 1720–30

Word History and Origins

Origin of vitellus¹

C18: from Latin, literally: little calf, later: yolk of an egg, from vitulus calf

Example Sentences

It has only been met with in the vitellus of some of the medium sized ova of a young female.

From Project Gutenberg

It is formed from the vitellus at a much later period than the proper vitelline membrane.

From Project Gutenberg

The yolk spherules I find to be first developed in a peripheral layer of the vitellus.

From Project Gutenberg

Vit′ellary, Vitell′ine, pertaining to the vitellus, or forming such.

From Project Gutenberg

In Ascidia canina these processes become as long as the whole diameter of the vitellus (Kupffer, No. 60).

From Project Gutenberg