名詞 constriction:

1. a narrowing that reduces the flow through a channel
   同義詞：bottleneck, chokepoint
2. tight or narrow compression
   同義詞：coarctation
3. a tight feeling in some part of the body
   同義詞：tightness
4. the action or process of compressing

1. Constriction of a blood vessel, as by a nerve or drug.
   血管縮小血管的縮小，如由于緊張或藥物

con.stric.tion

n.（名詞）

The act or process of constricting.
壓縮：壓縮的行為或過程
The condition or result of being constricted.
壓縮：被壓縮的情形或結(jié)果
Something that constricts.
被壓縮物
A feeling of tightness or pressure:
壓抑：壓緊或有壓力的感覺：
例句：
Fear caused a sudden constriction in my chest.
恐懼使我胸部突然感到有點(diǎn)壓抑

A constricted or narrow part.
阻塞物：被壓縮的或窄的部件