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English definition of “dam”

dam

noun [C] uk   /dæm/ us  
a wall built across a river that stops the river's flow and collects the water, especially to make a reservoir (= an artificial lake) that provides water for an area: The Aswan High Dam is on the River Nile in Egypt.
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a dental dam

dam

verb [T] uk   /dæm/ (-mm-) us  
to build a dam across a river in order to store water
Phrasal verbs
(Definition of dam from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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