yolk : Idioms & Phrases

Index

egg yolk

  • noun the yellow spherical part of an egg that is surrounded by the albumen
    yolk.
WordNet

Food yolk

  • . (Biol.) See under Yolk.
Webster 1913

Yolk cord

  • (Zoöl.), a slender cord or duct which connects the yolk glands with the egg chambers in certain insects, as in the aphids.
Webster 1913

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.
Webster 1913

yolk sac

  • noun membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional
    vesicula umbilicus; vitelline sac; umbilical vesicle.
  • noun membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo
WordNet

Yolk sack

  • (Anat.), the umbilical vesicle. See under Unbilical.
Webster 1913