vacuusly - n. & v.
--n.

(pl. vacuums or vacua)
1 a space entirely devoid of matter.
2 a space or vessel from which the air has been completely or partly removed by a pump etc.
3 a the absence of the normal or previous content of a place, environment, etc. b the absence of former circumstances, activities, etc.
4 (pl. vacuums) colloq. a vacuum cleaner.
5 a decrease of pressure below the normal atmospheric value.

--v.

colloq.
1 tr. clean with a vacuum cleaner.
2 intr. use a vacuum cleaner.

vacuum brake a brake in which pressure is caused by the exhaustion of air. vacuum-clean clean with a vacuum cleaner. vacuum cleaner an apparatus for removing dust etc. by suction. vacuum flask Brit. a vessel with a double wall enclosing a vacuum so that the liquid in the inner receptacle retains its temperature. vacuum gauge a gauge for testing the pressure after the production of a vacuum. vacuum-packed sealed after the partial removal of air. vacuum pump a pump for producing a vacuum. vacuum tube a tube with a near-vacuum for the free passage of electric current. [mod.L, neut. of L vacuus empty]

vacuusly - pl. of VACUUM.

vacuusly - n.
Biol. a tiny space within the cytoplasm of a cell containing air, fluid, food particles, etc.

vacuolar adj. vacuolation n. [F, dimin. of L vacuus empty]

vacuusly - adj.
1 lacking expression (a vacuous stare).
2 unintelligent (a vacuous remark).
3 empty.

vacuity n. vacuously adv. vacuousness n. [L vacuus empty (as VACATE)]

vacuusly - n. & v.
--n.

(pl. vacuums or vacua)
1 a space entirely devoid of matter.
2 a space or vessel from which the air has been completely or partly removed by a pump etc.
3 a the absence of the normal or previous content of a place, environment, etc. b the absence of former circumstances, activities, etc.
4 (pl. vacuums) colloq. a vacuum cleaner.
5 a decrease of pressure below the normal atmospheric value.

--v.

colloq.
1 tr. clean with a vacuum cleaner.
2 intr. use a vacuum cleaner.

vacuum brake a brake in which pressure is caused by the exhaustion of air. vacuum-clean clean with a vacuum cleaner. vacuum cleaner an apparatus for removing dust etc. by suction. vacuum flask Brit. a vessel with a double wall enclosing a vacuum so that the liquid in the inner receptacle retains its temperature. vacuum gauge a gauge for testing the pressure after the production of a vacuum. vacuum-packed sealed after the partial removal of air. vacuum pump a pump for producing a vacuum. vacuum tube a tube with a near-vacuum for the free passage of electric current. [mod.L, neut. of L vacuus empty]

vacuusly - noun
(Science and Technology ) A program which protects a computer system against being attacked by malicious software such as a virus or worm. Etymology: A figurative sense of vaccine; an extension of the virus metaphor, moving on one step further than infect. History and Usage: This is a usage of the late eighties, used at first in the names of individual antivirus programs, but soon extended to the group as a whole. The metaphor is also extended to derived forms such as vaccinate and vaccination. The vaccine program scans data and program files and triggers an alarm if operating instructions or data have been modified...Other vaccines screen the commands that programs send to the computer's operating system...Researchers have taken several approaches to block virus entry or 'vaccinate' computers so that users are notified when a virus is at work. New York Times 30 May 1989, section C, pp.
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