In+a+vacuum
81vacuum cleaner — ► NOUN ▪ an electrical apparatus that collects dust from floors and other surfaces by means of suction …
82vacuum-pack — ► VERB ▪ seal (a product) in a pack or wrapping with the air removed …
83vacuum pump — n. 1. a pump used to draw air or gas out of sealed space 2. PULSOMETER (sense 1) …
84vacuum tube — n. an electron tube from which the air has been evacuated to the highest possible degree …
85vacuum-packed — ☆ vacuum packed [vak′yo͞opakt΄ ] adj. packed in an airtight container from which most of the air was exhausted before sealing, so as to maintain freshness …
86vacuum fan — vacuum fan, a fan that operates by suction, used to ventilate an enclosed area …
87Vacuum — 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… …
88Vacuum 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… …
89Vacuum cleaner — Cylinder vacuum cleaner for home use. French train vacuum cleaner …
90Vacuum 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… …
