Definitions for "Yolk"
Keywords:  nutritive, ovum, embryo, egg, yellow
The yellow part of an egg; the vitellus.
The stored food in egg cells that nourishes the embryo.
The yellow part of the egg. It provides the nutrients for the developing embryo. The embryo itself starts off as a germinal disc sitting on the surface of the yolk.
A colorless natural impurity consisting of grease and sweat.
Keywords:  oily, sheep, wool, secretion, naturally
An oily secretion which naturally covers the wool of sheep.