Vitelline vessel
vitelline vessel n.
The artery that carries blood to the yolk sac from the embryo.
The vein that carries blood from the yolk sac to the embryo.
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- Vitellogenesis
[vi-tel-oh-jen-uh-sis, vahy-] /vɪˌtɛl oʊˈdʒɛn ə sɪs, vaɪ-/ noun, Embryology. 1. the process by which the yolk is formed and accumulated in the ovum.
- Vitellogenic
/ˌvɪtələʊˈdʒɛnɪk/ adjective 1. (zoology) producing or stimulating the formation of yolk
- Vitellointestinal cyst
vitellointestinal cyst vi·tel·lo·in·tes·ti·nal cyst (vīt’l-ō-ĭn-těs’tə-nəl, vĭt’-) n. A small tumor at the umbilicus of an infant, caused by the persistence of a segment of the vitellointestinal duct.
- Vitellus
noun, plural vitelluses. 1. the yolk of an egg. noun (pl) -luses, -li (-laɪ) 1. (zoology, rare) the yolk of an egg vitellus vi·tel·lus (vĭ-těl’əs, vī-) n. pl. vi·tel·lus·es The yolk of an egg.
- Vitiable
adjective 1. capable of being vitiated.