contaminant
gb/kəntˈæmənənt/ us/kəntˈæmənənt/
B2
英语
~ 8600
义项
0 个义项
名词
B2
entity
1
harmful or unwanted impurity
A substance that makes water, air, food, or another thing dirty, unsafe, or not pure.
用法模式：
a contaminant in [something]
常见错误：
Learners sometimes confuse 'contaminant' (a substance) with 'contamination' (the state of being dirty or unsafe) or 'contaminate' (the verb). For example, say 'The water contains a contaminant' (not 'The water contains a contamination') and 'The chemicals contaminate the river' (not 'The chemicals contaminant the river'). Learners also sometimes use it as an adjective, e.g. 'contaminant water'; instead say 'contaminated water' or 'water with contaminants'.
近义词
pollutant (Often used for substances that harm the environment, especially air and water; slightly more specific to pollution than 'contaminant'.)
|
impurity (More general and not always harmful; used when something is not perfectly pure, even if it is still safe.)
反义词
purifier (A device or substance that removes contaminants and makes something clean or pure, which is the opposite role of a contaminant.)
搭配
chemical contaminant
|environmental contaminant
|water contaminant
|food contaminant
|airborne contaminant
|remove contaminants
主题
science
|health
|environment
|food
|core_vocabulary
例句
- The lab found a dangerous contaminant in the town’s drinking water.
- Food companies must test their products for any bacterial contaminants before shipping them.
- The filter is designed to trap dust and other airborne contaminants.
- Lead is a common contaminant in old plumbing systems.
- Strict rules limit the amount of chemical contaminants released into the river.
学习者例句
- The doctor said there was a contaminant in the blood sample.
- This mask helps protect you from contaminants in the air.
- The company removed the contaminant from the water before selling it.
- Scientists tested the soil for contaminants after the oil spill.
语法
词典原形
contaminant
IPA
GB/kəntˈæmənənt/
US/kəntˈæmənənt/
音节与重音
con - tam - in - ant （4 个音节）
Stress on 2nd syllable (tam)
词形变化
Noun
- Base: contaminant
- Plural: contaminants
词族
Forms
contaminants
noun
Core family
Negative and opposite forms
uncontaminated
adjective
decontaminate
verb
decontamination
noun
相关表达
这个词条暂未关联相关表达。