vacuum
B1Գոյական/US /vˈækjuːm/ VĂKY-o͞om; UK /vˈækjuːm/ VĂKY-o͞om/
A space entirely devoid of matter ; hence, in a more general sense, a space, as the interior of a closed vessel, which has been exhausted to a high or the highest degree by an air pump or other artificial means; as, water boils at a reduced temperature in
