vacuum
71vacuum cleaning — noun • • • Main Entry: ↑vacuum * * * vacuum cleaning, the act of cleaning with a vacuum cleaner …
72Vacuum grease — is a lubricant with low volatility and is used for applications in low pressure environments. Lubricants with higher volatility would evaporate, causing two problems: * They would not be present to provide lubrication. * They would make lowering… …
73Vacuum Induction Melting — is a process for melting metal under vacuum conditions using electromagnetic induction. It works by creating electrical eddy currents in the metal which heats the charge to melt it. This process is used for refining of high purity metal and… …
74vacuum cleaner — [vakɥɔmklinœʀ] n. m. ÉTYM. 1904; mots angl. « nettoyeur par le vide ». → Vacuum. ❖ ♦ Anglic., vieilli. Aspirateur (domestique). 0 Ce fauteuil (la chaise électrique) est à l antique guillotine ce qu est le vacuum cleaner au balai poussiéreux et… …
75vacuum tube — n an electronic device in which conduction by electrons takes place through a vacuum within a sealed glass or metal container and which has various uses based on the controlled flow of electrons * * * a glass tube from which the air has been… …
76vacuum bottle — vacuum bottles N COUNT A vacuum bottle is the same as a vacuum flask. [AM] …
77Vacuum cleaner — Vac u*um clean er A machine for cleaning carpets, tapestry, upholstered work, etc., by suction; sometimes called a {vacuum}. [Webster 1913 Suppl.] …
78Vacuum Flowers — is a science fiction novel by Michael Swanwick, published in 1987. It could be described as cyberpunk (some critics credit it as one of the pregenitor works of that genre), and features one of the earliest uses of the concept wetware.The… …
79Vacuum fusion — is an analytical chemistry technique, used for determining the oxygen, hydrogen, and sometimes nitrogen content of metals. While ineffective when used on alkali or earth metals, vacuum fusion remains a viable means when applied to almost all… …
80vacuum valve — n. Brit. VACUUM TUBE * * * …
