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)
Posted on. by admin. Fan vs Blower. The fan is a mechanical device that is used to create a continuous flow of gas such as air. In any cooling system, which uses a gas as the working fluid, a fan is a compulsory unit which creates the flow of air through the system.It can be a simple ceiling fan used in households or an external cooling fan for internal combustion engines. When higher pressure is required blowers are used instead of fans.osted on. by admin. Fan vs Blower. The fan is a mechanical device that is used to create a continuous flow of gas such as air. In any cooling system, which uses a gas as the working fluid, a fan is a compulsory unit which creates the flow of air through the system.