noun Download 🔗Share A region of space that contains no matter. Examples : "In science class, we learned that vacuums exist in outer space. " space physics astronomy science Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share (plural only "vacuums") A vacuum cleaner. Examples : "The store sells vacuums of different brands and prices. " utility technology utensil machine device Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, such as the condenser of a steam engine, which is nearly exhausted of air or steam, etc. Examples : "a vacuum of 26 inches of mercury, or 13 pounds per square inch" physics condition technology machine science Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A spacetime having tensors of zero magnitude Examples : "Theoretical physics explores vacuums, regions of spacetime devoid of matter and energy, to understand the fundamental laws of the universe. " physics space theory Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To clean (something) with a vacuum cleaner. Examples : "She vacuums the living room carpet every Saturday morning. " utility technology machine device work action Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To use a vacuum cleaner. Examples : "Every Saturday morning, my dad vacuums the living room. " utility technology machine device service action Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To optimise a database or database table by physically removing deleted tuples. Examples : "The database administrator vacuums the user table every week to improve performance by removing old, deleted accounts. " computing technical Chat with AIVocabulary GamePractice Reading