noun
yolk
YOHK/jəʊk/
The nutrient-rich material in an egg that feeds the developing embryo.
The golden yolk sits in the translucent white of the cracked egg.

Etymology
Old English geolca comes from the word for “yellow.” The name identifies this part of the egg by its color, in contrast with the white.
In context
to make egg tempera then you can take just the yolk and Pierce the yolk and use the yellow of the egg
More examples
- She separates the yolks from the whites.
- The developing embryo draws nourishment from the yolk.
- The cooked yolk is firm and bright yellow.
Forms
yolk · yolks