Definition of Dyson™ from the Oxford Advanced Learner's Dictionary

 

Dyson™

 
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a type of vacuum cleaner (= an electrical machine that cleans by sucking up dirt and dust) which works without a bag and is therefore more efficient. It was invented by a British designer, James Dyson, whose company, also called Dyson, was founded in 1993. It produces other electrical devices as well as vacuum cleaners, and is known for using new ideas in the design of its products.