to vacuum a room
1Vacuum evaporation — is the process of causing the pressure in a container to fall until water s boiling point has been lowered to room temperature. When the process is applied to food and the water is evaporated and removed, the food can be stored for long periods… …
2Vacuum cleaner — Cylinder vacuum cleaner for home use. French train vacuum cleaner …
3vacuum technology — Introduction all processes and physical measurements carried out under conditions of below normal atmospheric pressure. A process or physical measurement is generally performed in a vacuum for one of the following reasons: (1) to remove the …
4Vacuum — This article is about empty physical space or the absence of matter. For other uses, see Vacuum (disambiguation). Free space redirects here. For other uses, see Free space (disambiguation). Pump to demonstrate vacuum In everyday usage, vacuum is… …
5Vacuum pump — A vacuum pump is a device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. The vacuum pump was invented in 1650 by Otto von Guericke. Types Pumps can be broadly categorized according to three… …
6Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… …
7Vacuum brake — The vacuum brake is a braking system used on trains. It was first introduced in the mid 1860s and a variant, the automatic vacuum brake system became almost universal in British train equipment, and in those countries influenced by British… …
8Vacuum mattress — A vacuum mattress, or vacmat, is a medical device used for the immobilisation of patients, especially in case of a vertebra, pelvis or limb trauma (especially for femur trauma). It is also used for manual transportation of patients for short… …
9vacuum — /vak yoohm, yooh euhm, yeuhm/, n., pl. vacuums for 1, 2, 4 6, vacua /vak yooh euh/ for 1, 2, 4, 6; adj.; v. n. 1. a space entirely devoid of matter. 2. an enclosed space from which matter, esp. air, has been partially removed so that the matter… …
10vacuum — I UK [ˈvækjʊəm] / US [ˈvækjuəm] / US [ˈvækjum] noun Word forms vacuum : singular vacuum plural vacuums * 1) [countable] physics a space that has had all the air and any other gases removed from it 2) [singular] a feeling that something is missing …
