1. 狭窄,缩窄：constitution 结构,组织 | constriction 狭窄,缩窄 | constrictor 缩窄器,压缩器

2. constriction

2. 颈缩：constantan康铜 | constriction颈缩 | constructiveinterference相长干涉

3. 缢缩(作用)[用于真菌学];缢痕：constraint 约束(因素),限制(因素) | constriction 缢缩(作用)[用于真菌学];缢痕 | construction 构建,组建

1. 规定;限制;制约
    Constrictions are rules or factors which limit what you can do and prevent you from doing what you want to do.

    e.g. I hated the constrictions of school.
           我痛恨学校的各种规定。

1. the action or process of compressing

2. a tight feeling in some part of the body

    e.g. he felt a constriction in her chest
           she felt an alarming tightness in her chest
           emotion caused a constriction of his throat

    Synonym: tightness

3. tight or narrow compression

    Synonym: coarctation

4. a narrowing that reduces the flow through a channel

    Synonym: bottleneckchokepoint