n. | 1. | ||||||||||
1. | The yellow part of an egg; the vitellus. | ||||||||||
2. | (Zool.) An oily secretion which naturally covers the wool of sheep.
|
Noun | 1. | yolk - nutritive material of an ovum stored for the nutrition of an embryo (especially the yellow mass of a bird or reptile egg) Synonyms: vitellus |