- 1. n. The yellow part of an egg; the vitellus. Source: opted
- 2. n. An oily secretion which naturally covers the wool of sheep. Source: opted
- 3. n. the yellow spherical part of an egg that is surrounded by the albumen Source: wordnet
- 4. n. nutritive material of an ovum stored for the nutrition of an embryo (especially the yellow mass of a bird or reptile egg) Source: wordnet
- 5. 1. The yellow part of an egg; the vitellus. 2. (Zoöl.) An oily secretion which naturally covers the wool of sheep. Yolk cord (Zoöl.), a slender cord or duct which connects the yolk glands with the egg chambers in certain insects, as in the aphids. -- Yolk gland (Zoöl.), a special organ which secretes the yolk of the eggs in many turbellarians, and in some other invertebrates. See Illust. of Hermaphrodite in Appendix. -- Yolk sack (Anat.), the umbilical vesicle. See under Unbilical. Source: webster
- 6. An oily secretion which naturally covers the wool of sheep.Yolk cord (Zoöl.), a slender cord or duct which connects the yolkglands with the egg chambers in certain insects, as in the aphids.-- Yolk gland (Zoöl.), a special organ which secretes the yolk ofthe eggs in many turbellarians, and in some other invertebrates. SeeIllust. of Hermaphrodite in Appendix.-- Yolk sack (Anat.), the umbilical vesicle. See under Unbilical. Source: adambom
- 7. n:100 n. nutritive material of an ovum stored for the nutrition of an embryo (especially the yellow mass of a bird or reptile egg) Source: ecdict
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