contamination
Contamination refers to the presence of unwanted or harmful substances that make something impure, dirty, or unfit for use. It is commonly used in scientific, environmental, and forensic contexts to describe the loss of purity through contact with a foreign element.
예시
3 / 5The contamination of the local pond by trash made it impossible to swim.
The polluting of the pond with garbage prevented people from swimming.
The authorities are investigating the potential contamination of the groundwater supply.
Officials are looking into the possible poisoning of the underground water sources.
There's some contamination in the lab sample, so we might have to start the test over.
The sample has been dirtied, so the test needs to be repeated.
어휘 가족
암기 팁
Think of 'CON-TAM-ination' as 'Container Tampering'—someone tampered with the container and made the contents dirty.
빠른 퀴즈
The laboratory had to discard the results because of accidental _______ of the DNA samples.
정답!
정답은: contamination
예시
The contamination of the local pond by trash made it impossible to swim.
everydayThe polluting of the pond with garbage prevented people from swimming.
The authorities are investigating the potential contamination of the groundwater supply.
formalOfficials are looking into the possible poisoning of the underground water sources.
There's some contamination in the lab sample, so we might have to start the test over.
informalThe sample has been dirtied, so the test needs to be repeated.
Researchers found significant levels of chemical contamination in the soil samples collected near the factory.
academicScientists identified high amounts of toxic chemicals within the dirt taken from the industrial area.
The food processing plant was closed due to suspected bacterial contamination in the packaging area.
businessThe factory shut down because they thought harmful bacteria had entered the packaging zone.
어휘 가족
자주 쓰는 조합
자주 쓰는 구문
source of contamination
the origin of the polluting substance
avoid cross-contamination
taking steps to prevent the spread of germs between items
levels of contamination
the measured amount of impurities present
자주 혼동되는 단어
Pollution is a broad term for environmental damage; contamination specifically implies that a substance has become impure or dangerous due to a foreign additive.
Infection refers to the biological invasion of a living host by pathogens, whereas contamination refers to the presence of those pathogens on surfaces or in substances.
사용 참고사항
Use 'contamination' when discussing scientific samples, food safety, or environmental issues where a specific substance has made something else impure. It is often an uncountable noun.
자주 하는 실수
Learners often use 'contaminate' as a noun; remember that 'contamination' is the noun form. Also, do not confuse it with 'contagion', which refers to the spread of disease.
암기 팁
Think of 'CON-TAM-ination' as 'Container Tampering'—someone tampered with the container and made the contents dirty.
어원
Derived from the Latin 'contaminatio', meaning 'defilement' or 'corruption' through touch or contact.
문법 패턴
문화적 맥락
In modern society, this word is frequently seen in 'boil water' advisories or food recall news regarding E. coli or Salmonella.
빠른 퀴즈
The laboratory had to discard the results because of accidental _______ of the DNA samples.
정답!
정답은: contamination
관련 어휘
관련 단어
proceed
C1The noun form, typically used in the plural 'proceeds,' refers to the total amount of money received from a particular event, sale, or activity. It is a formal term used in academic, legal, and business contexts to describe the result of a financial transaction or fundraising effort.
individual
C1Relating to a single person or thing as distinct from a group. It describes something that is intended for, or used by, one person rather than a collective entity.
appropriately
B2To perform an action in a manner that is suitable, right, or proper for a particular situation, person, or occasion. It implies following specific social norms, professional standards, or logical requirements.
region
B2A region is an area of land that has common features, such as geography, climate, or culture, which distinguish it from other areas. It can refer to a large part of a country or the world and is often used in administrative or scientific contexts to organize space.
resource
B2A stock or supply of money, materials, staff, and other assets that can be drawn on by a person or organization in order to function effectively. In academic and informational contexts, it refers to a source of information or expertise used to support research or learning.
to
A1Used to indicate the place, person, or thing that someone or something moves toward. It can also mark the recipient of an action or the limit of a range.
and
A1A primary conjunction used to connect words, phrases, or clauses that are grammatically equal. It indicates addition, a sequence of events, or a relationship between two things.
a
A1A word used before a singular noun that is not specific or is being mentioned for the first time. It is used only before words that begin with a consonant sound to indicate one of something.
that
A1This word is a demonstrative pronoun used to indicate a specific person, object, or idea that is further away in space or time from the speaker. It is also used to refer back to something that has already been mentioned or to introduce a clause that identifies something.
I
A1The pronoun 'I' is used by a speaker or writer to refer to themselves as the subject of a verb. It is the first-person singular subject pronoun in English and is always capitalized regardless of its position in a sentence.
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