Word · Frequency #20368
sedative
镇静剂
a drug that reduces excitability and calms a person
- 1.
An agent or drug that sedates, having a calming or soothing effect, or inducing sleep.
一种镇静剂或药物,具有安抚或舒缓作用,或诱导睡眠。
- 2.
a drug that reduces excitability and calms a person
降低兴奋性并使人体镇静的药物
一种镇静剂或药物,具有安抚或舒缓作用,或诱导睡眠。;降低兴奋性并使人体镇静的药物
In use
The doctor gave her a mild sedative to help her sleep before the flight.
After the accident, he needed a sedative to calm down.
The hospital keeps strong sedatives in a locked cabinet.
be under a sedative
作名词时,under a sedative 表示“在镇静剂作用下”,常用于医疗语境。
The patient is under a sedative and should not be disturbed.
病人正在镇静剂作用下,不应被打扰。
use sth as a sedative
作名词时,as a sedative 说明用途,as 后接名词。
Chamomile tea is often used as a mild sedative.
洋甘菊茶常被用作温和的镇静剂。
have a sedative effect
作形容词时,sedative 通常放在名词前修饰,如 sedative effect(镇静作用)。
Connections
Collocations
- take a sedative
- 服用镇静剂
- She took a sedative to help her sleep on the long flight.她在长途航班上服用了镇静剂来帮助入睡。
- prescribe a sedative
- 开镇静剂
- The doctor prescribed a sedative for the patient's severe anxiety.医生为这位严重焦虑的病人开了镇静剂。
- a mild sedative
- 温和的镇静剂
- Chamomile tea is often used as a mild sedative before bedtime.洋甘菊茶在睡前常被用作温和的镇静剂。
- a strong sedative
- 强效镇静剂
- The hospital gave him a strong sedative before the surgery.手术前医院给他用了强效镇静剂。
- a natural sedative
- 天然镇静剂
- Some herbs act as natural sedatives for people who cannot tolerate prescription drugs.一些草药对无法耐受处方药的人来说可起到天然镇静剂的作用。
Learner notes
Memory Tip
联想:sedative 开头像 sedate(安静的),让人安静下来的药就是镇静剂。
Context & Register
语域:neutral 常见场景:medical consultation、prescription drug information、discussing sleep or anxiety medication 此条目针对名词义项(镇静剂)。该词通常用于医疗、药学或谈论药物作用的场景,属于中性偏正式的说法;日常口语中也适用,但更随意的对话里也可能用 sleeping pill 等词。
Pronunciation & Spelling
没有与 /ˈsɛdətɪv/ 完全押韵的常用词。sedate 和 sedation 以 sed- 开头,但读作 /sɪˈdeɪt/、/sɪˈdeɪʃn/,与 sedative 的 /sɛd/ 开头不同;native、creative、talkative、relative 都以 -ative 结尾,但重音和元音不同,也不押韵。
Usage priority
Collins 词频等级为 1,建议结合例句记忆,而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.