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English definition of “bottleneck”

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bottleneck

noun [C] uk   /ˈbɒt.l̩.nek/ us    /ˈbɑː.t̬l̩-/
a place where a road becomes narrow, or a place where there is often a lot of traffic, causing the traffic to slow down or stop: The construction work is causing bottlenecks in the city centre. a problem that delays progress: Is there any way of getting around this bureaucratic bottleneck?
(Definition of bottleneck from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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