plural of vacuum distillation

plural of vacuum energy

plural of vacuum fluorescent display

plural of vacation home

(beekeeping) A suction device somewhat like a vacuum cleaner, used to capture swarms of bees.

plural of Vaca

A surname.

plural of vacuum brake

(rail transport) A brake used on trains, working on the principle of keeping up a vacuum in a continuous pipe or pipes extending under the train, and in brake-cylinders connected to them under each vehicle, the air being sucked out by ejectors or pumps on the locomotive.

The vacuum in the Torricellian barometer.