Vacuum

['vækjʊəm]

解释:

(noun.) an electrical home appliance that cleans by suction.

(noun.) a region that is devoid of matter.

(noun.) the absence of matter.

(verb.) clean with a vacuum cleaner; 'vacuum the carpets'.

编辑:韦斯利--From WordNet

解释:

(n.) A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); 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 a vacuum.

(n.) The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of mercury, or 13 pounds per square inch.

艾伯特整理

同义词及近义词：

n. Void, empty space, vacuity.

克劳德整理