Noun

• S: (n) constriction, bottleneck, chokepoint (a narrowing that reduces the flow through a channel)
• S: (n) constriction, coarctation (tight or narrow compression)
• S: (n) constriction, tightness (a tight feeling in some part of the body) "he felt a constriction in her chest"; "she felt an alarming tightness in her chest"; "emotion caused a constriction of his throat"
• S: (n) constriction (the action or process of compressing)