| 单词 | vacuum |
| 释义 | Word Frequency vacuum(ˈvækjʊəm) nounWord forms: plural vacuums or vacua (ˈvækjʊə) 1. a region containing no matter; free space Compare plenum (sense 3)2. a region in which gas is present at a low pressure 3. the degree of exhaustion of gas within an enclosed space a high vacuum a perfect vacuum 4. a sense or feeling of emptiness her departure left a vacuum in my life 5. short for vacuum cleaner 6. (modifier) of, containing, measuring, producing, or operated by a low gas pressure a vacuum tube a vacuum brake verb 7. to clean (something) with a vacuum cleaner to vacuum a carpet Word origin C16: from Latin: an empty space, from vacuus empty |
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