Vacuum
111vacuum tube — vacuum .tube n AmE a ↑valve …
112vacuum cleaner — vacuum ,cleaner noun count a piece of electrical equipment that cleans floors by sucking up dirt …
113vacuum cleaner — ► NOUN ▪ an electrical apparatus that collects dust from floors and other surfaces by means of suction …
114vacuum-pack — ► VERB ▪ seal (a product) in a pack or wrapping with the air removed …
115vacuum pump — n. 1. a pump used to draw air or gas out of sealed space 2. PULSOMETER (sense 1) …
116vacuum tube — n. an electron tube from which the air has been evacuated to the highest possible degree …
117vacuum-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 …
118vacuum fan — vacuum fan, a fan that operates by suction, used to ventilate an enclosed area …
119Vacuum 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… …
120Vacuum cleaner — Cylinder vacuum cleaner for home use. French train vacuum cleaner …