Vitellus

·noun Perisperm in an early condition.

II. Vitellus ·noun The contents or substance of the ovum; egg yolk. ·see ·Illust. of Ovum.

vitellus
vĭtellus, i, m. dim. [vitulus]. * I A little calf , as a term of endearment, Plaut. As. 3, 3, 77.—...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
vitellus
vitellus ī, m dim.vitulus, the yellow part of an egg, yolk, yelk : nihilne de vitello?: mos, H. ...

An Elementary Latin Dictionary