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.
أمثلة
3 من 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.
المرادفات
الأضداد
عائلة الكلمة
نصيحة للحفظ
Think of 'CON-TAM-ination' as 'Container Tampering'—someone tampered with the container and made the contents dirty.
اختبار سريع
The laboratory had to discard the results because of accidental _______ of the DNA samples.
صحيح!
الإجابة الصحيحة هي: contamination
أمثلة
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.
المرادفات
الأضداد
عائلة الكلمة
تلازمات شائعة
العبارات الشائعة
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
يُخلط عادةً مع
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.
ملاحظات الاستخدام
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.
أخطاء شائعة
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.
نصيحة للحفظ
Think of 'CON-TAM-ination' as 'Container Tampering'—someone tampered with the container and made the contents dirty.
أصل الكلمة
Derived from the Latin 'contaminatio', meaning 'defilement' or 'corruption' through touch or contact.
أنماط نحوية
السياق الثقافي
In modern society, this word is frequently seen in 'boil water' advisories or food recall news regarding E. coli or Salmonella.
اختبار سريع
The laboratory had to discard the results because of accidental _______ of the DNA samples.
صحيح!
الإجابة الصحيحة هي: contamination
مفردات ذات صلة
كلمات ذات صلة
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.
for
A1Used to show who is intended to have or use something, or to explain the purpose or reason for an action. It is also frequently used to indicate a specific duration of time.
not
A1A function word used to express negation or denial. It is primarily used to make a sentence or phrase negative, often following an auxiliary verb or the verb 'to be'.
with
A1A preposition used to indicate that people or things are together, in the same place, or performing an action together. It can also describe the instrument used to perform an action or a characteristic that someone or something has.
he
A1A pronoun used to refer to a male person or animal that has already been mentioned or is easily identified. It functions as the subject of a sentence.
you
A1Used to refer to the person or people that the speaker is addressing. It is the second-person pronoun used for both singular and plural subjects and objects.
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