Definition of suction noun from the Oxford Advanced Learner's Dictionary

 

suction

 noun
noun
BrE BrE//ˈsʌkʃn//
 
; NAmE NAmE//ˈsʌkʃn//
 
[uncountable]
 
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the process of removing air or liquid from a space or container so that something else can be sucked into it or so that two surfaces can stick together Vacuum cleaners work by suction. a suction pump/pad Word Origin early 17th cent.: from late Latin suctio(n-). from Latin sugere ‘suck’.

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