Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Dictionary Suite
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vacuum bottle a bottle or flask with a vacuum between its double walls which helps to sustain the original temperature of the contents; thermos.
vacuum cleaner an electrical appliance that cleans floors, carpets, and the like by suction; vacuum sweeper.
vacuum tube an electron tube, formerly used in radio and electronics, from which the air has been evacuated, enabling electrons to move freely within the vacuum.
vacuum-packed packed in a container from which as much of the air as possible has been removed before sealing.
vacuum-sealed of or relating to a packaged material that has had all the air removed.