1
constriction of sth
of 后接被缩窄的事物，常用于描述血管、气道等。
The constriction of the artery reduced blood flow.
动脉的缩窄减少了血流量。
变窄；缩窄
constrictions — plural of constriction
先理解核心含义，再看它在真实句子里的用法。
变窄；缩窄
a narrowing that reduces the flow through a channel
The constriction of the artery reduced blood flow.
动脉的缩窄减少了血流量。
指管道、血管等通道变窄
收缩的行为,被收缩的状态,或收缩物。
The act of constricting, the state of being constricted, or something that constricts.
某物的狭窄部分；狭窄处。
A narrow part of something; a stricture.
压缩。
A compression.
The doctor explained that the constriction of the blood vessel was reducing blood flow to the patient's hand.
医生解释说，血管的变窄正在减少流向患者手部的血液。
She felt a painful constriction in her chest after running up the stairs.
跑上楼梯后，她感到胸口一阵疼痛的紧束感。
The narrow constriction in the pipe caused the water pressure to drop.
管道中的狭窄处导致水压下降。
of 后接被缩窄的事物，常用于描述血管、气道等。
The constriction of the artery reduced blood flow.
动脉的缩窄减少了血流量。
in 后接身体部位，表示该处的紧束感或压迫感。
She felt a constriction in her throat when she heard the news.
听到这个消息时，她感到喉咙发紧。
feeling/sense of 后接抽象名词，强调主观感受。
Patients often report a feeling of constriction in the chest.
患者常主诉胸部有压迫感。
Not this
The medicine helps constriction the blood vessels.
Use this
The medicine helps constrict the blood vessels.
constriction 是名词，表示“收缩、压缩”的状态；help 后应接动词原形，表达“使……收缩”时须用动词 constrict。
Not this
He complained of a constriction on his chest.
Use this
He complained of a constriction in his chest.
表示身体内部的紧束感时，介词应用 in（在……里面），而 on 表示在表面上，因此 a constriction in his chest 才符合英语搭配。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
血管收缩
Cold weather can cause constriction of the blood vessels.
寒冷的天气可能导致血管收缩。
气道缩窄
This medicine helps reduce airway constriction.
这种药有助于减轻气道缩窄。
瞳孔收缩
Bright light causes pupil constriction.
明亮的光线会引起瞳孔收缩。
胸部压迫感
He complained of chest constriction during the exam.
他在考试期间主诉胸部压迫感。
紧束感
She had a feeling of constriction in her throat.
她喉咙有一种紧束感。
Use constrictions naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记：con（共）+strict（紧）→ 一起收紧，通道变窄、有压迫感。
语域：mixed 常见场景：medical writing、scientific texts、formal writing constriction 在医学、生理学等专业语境中属于常规用词，在一般书面语中则偏正式；日常口语较少使用，更常说 narrowing 或 tight feeling。具体含义需根据语境判断。
复数形式为 constrictions。
Dictionary facts from ECDICT, WIKTIONARY.