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)
Introduction to the Leaf Blower. While some home owners love the look of leaves all over their yard, some like a more manicured look and want the leaves out of their yard. If youâre one of the latter groups of people, a leaf blower is the answer to your dilemma. Leaf blowers make quick work of getting the leaves grouped together so they can be bagged up. They can be gas powered or electric and come in many different sizes, power levels and styles.