a vaccine which prevents or eases the severity of the problems from an infection that has already occurred.

plural of vacation

Third-person singular simple present indicative form of vacation

To clean with a vacuum cleaner.

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

In a vacant manner; inanely or foolishly.

plural of vaccination mark

(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.

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

simple past tense and past participle of vacuum-pack