vacuum2
زبان مبدأ: انگلیسی
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- واژهنامه · Merriam-Webster Collegiate Dictionary 1 vac·u·um n. Pronunciation: ' va-( ˌ )kyüm, -kyəm also -kyü-əm Function: noun Inflected Form:   plural vac·u·ums or vac·ua \-kyə-wə\ Etymology: Latin, from neuter of vacuus empty, from vacare to be empty Date: 1550 1 : emptiness of space 2 a : a space absolutely devoid of matter b : a space partially exhausted (as to the highest degree possible) by artificial means (as an air pump) c : a degree of rarefaction below atmospheric pressure 3 a : a state or condition resembling a vacuum : VOID <the power vacuum in Indochina after the departure of the French ― Norman Cousins> b : a state of isolation from outside influences <people who live in a vacuum ⋯ so that the world outside them is of no moment ― W. S. Maugham> 4 : a device creating or utilizing a partial vacuum especially : VACUUM CLEANER ]]> 2 vacuum n. Function: adjective Date: 1825 1 : of, containing, producing, or utilizing a partial vacuum <separated by means of vacuum distillation> 2 : of or relating to a vacuum device or system]]> 3 vacuum n. Function: transitive verb Date: 1922 1 : to use a vacuum device (as a vacuum cleaner) on < vacuum the living room> 2 : to draw or take in by or as if by suction intransitive verb : to operate a vacuum device]]> vacuum (as used in expressions) n. vacuum bottle vacuum cleaner vacuum sweeper vacuum flask vacuum gauge vacuum packed vacuum pan vacuum pump vacuum tube ]]>