Meaning: Membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional. Classified under: Nouns denoting animals. Synonyms: umbilical vesicle; vesicula umbilicus; vitelline sac; yolk sac. Hypernyms (vesicula umbilicus is a kind of...): sac (a structure resembling a bag in an animal)
electric fan; blower. Hypernyms (blower is a kind of...): fan (a device for creating a current of air by movement of a surface or surfaces) Meronyms (parts of blower): electric motor (a motor that converts electricity to mechanical work) fan blade (blade of a rotating fan)
Find out more about what glass blowers do to see if this is the right job for you. Discover how you can become one, what the career prospects are, and what earning prospects are. Career Definition for a Glass Blower. Glass blowing is an ancient art form, originally used for making bottles and tableware. In modern times there are scientific applications for glass blowing, but the technique is more commonly used to create decorative objects.