The part of a process that is too slow or cumbersome.
In traffic, any narrowing of the road, especially resulting in a delay.
The narrow portion that forms the pouring spout of a bottle; the neck of a bottle.
To slow by causing a bottleneck.
To form a bottleneck.
Something which retards or slows.
A refrigerator used to slow down proofing of yeast when making dough.
A device for slowing down large trucks, lorries, buses, shunted railway wagons.