a vacuum cleaner built into the fabric of a building, with a central motor and dirt bag and distributed points where a hose and appliances may be plugged in

(electronics) A type of electron tube that controls electron current through vacuum between electrodes within a sealed container, usually of glass or metal and often designed to be easily installed in and removed from the equipment in which it is used.

To clean with a vacuum cleaner.

plural of vacuum tube

A desiccator fitted with a stopcock whereby it can be evacuated

A region of low atmospheric pressure, especially one in which most of the air has been pumped out.

Packed in an airtight container in a partial vacuum.

A state of relative anarchy compared to neighboring states, often caused by death of the head of state before a successor could be designated.

simple past tense and past participle of vacuum-pack

plural of vacuum cleaner