Search Result：umbilical vesicle
umbilical vesicle 
(TTS Sound)
(TTS Sound)Overview of noun umbilical_vesicle
The noun umbilical vesicle has 1 sense
- yolk sac, vitelline sac, umbilical vesicle, vesicula umbilicus -- (membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional)