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siphon

noun [C] (also syphon)
 
 
/ˈsaɪ.fən/

Definition

a tube that is bent in the shape of an 'n', with each end in a separate container at two different levels, so that liquid can be pulled up into it from the higher container and go down through it into the lower containerPlumbing and pipes and sewageLaboratory equipment a soda siphonContainers for liquids and gases
(Definition of siphon noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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