2a narrow section of road or a junction that impedes traffic flow:the bottleneck on Talbot Road
a situation that causes delay in a process or system:animated films are still stymied by a technological bottleneck
3a device shaped like the neck of a bottle that is worn on a guitarist’s finger and used to produce sliding effects on the strings: [mass noun]:I started using bottleneck on the guitar
(also bottleneck guitar) [mass noun] the style of playing that uses a bottleneck:it is the perfect instrument for playing bottleneck
