[noun] [C] - 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 stopRoadworks are causing bottlenecks in the city centre and long delays can be expected.(figurative) Is there any way of getting round this bureaucratic bottleneck (= problem which delays development)?
BOTTLENECK
Meaning of BOTTLENECK in English
Cambridge English vocab. Кембриджский английский словарь. 2012