Difference between Bottleneck and Constriction

Bottleneck

Part of speech: noun

Definition: The narrow portion that forms the pouring spout of a bottle; the neck of a bottle . In traffic, any narrowing of the road, especially resulting in a delay. Any delay; part of a process that is too slow or cumbersome.

Part of speech: verb

Definition: To slow by causing a bottleneck. To form a bottleneck.

Constriction

Part of speech: noun

Definition: The act of constricting, the state of being constricted, or something that constrictsA narrow part of something; a strictureA compression