Today's Word of the Day means...
vacuum vac·u·um (vāk'yōō-əm, -yōōm, -yəm)
n. pl. vac·u·ums or vac·u·a (-yōō-ə)
Absence of matter.
A space empty of matter.
A space relatively empty of matter.
A space in which the pressure is significantly lower than atmospheric pressure.
Plural vacuums or vacuua
The absence of matter.
Note: In the natural world, air will flow into regions of vacuum, giving rise to the saying “Nature abhors a vacuum.”
Note: The saying is extended informally: in politics, a lack of leadership may be referred to as a vacuum, which will presumably be filled by others rushing in.