emission
The production and discharge of something, especially gas or radiation, into the environment. It is most commonly used in environmental science to describe the release of pollutants from vehicles, factories, or natural sources.
Examples
3 of 5My old car failed its yearly emission test because of a hole in the exhaust pipe.
My old car failed its yearly emission test because of a hole in the exhaust pipe.
The international treaty requires developed nations to reduce their carbon emission levels significantly by 2030.
The international treaty requires developed nations to reduce their carbon emission levels significantly by 2030.
There is a weird heat emission coming from the back of the fridge.
There is a weird heat emission coming from the back of the fridge.
Antonyms
Word Family
Memory Tip
Think of the word 'Exit.' An emission is when gas or light 'exits' a source.
Quick Quiz
The government has introduced stricter ___ standards for new diesel trucks.
Correct!
The correct answer is: emission
Examples
My old car failed its yearly emission test because of a hole in the exhaust pipe.
everydayMy old car failed its yearly emission test because of a hole in the exhaust pipe.
The international treaty requires developed nations to reduce their carbon emission levels significantly by 2030.
formalThe international treaty requires developed nations to reduce their carbon emission levels significantly by 2030.
There is a weird heat emission coming from the back of the fridge.
informalThere is a weird heat emission coming from the back of the fridge.
Quantitative analysis shows that the emission of greenhouse gases is directly proportional to industrial growth in this region.
academicQuantitative analysis shows that the emission of greenhouse gases is directly proportional to industrial growth in this region.
Our corporate social responsibility report highlights our transition to low-emission manufacturing processes.
businessOur corporate social responsibility report highlights our transition to low-emission manufacturing processes.
Antonyms
Word Family
Common Collocations
Common Phrases
zero-emission vehicle
A vehicle that does not emit exhaust gas from the onboard source of power.
emission trading
A market-based approach to controlling pollution by providing economic incentives.
carbon footprint
The total amount of greenhouse gases generated by our actions.
Often Confused With
An omission is leaving something out, while an emission is letting something out.
Transmission refers to the act of sending or passing something (like signals or diseases) from one place to another.
Usage Notes
While 'emission' is the singular act, it is very common to use the plural 'emissions' when talking about pollutants in a general sense (e.g., 'reducing global emissions'). In technical contexts, it can also refer to the release of light or sound.
Common Mistakes
Learners often use 'emit' as a noun or 'emission' as a verb. Remember that 'emission' is the thing or process, and 'emit' is the action.
Memory Tip
Think of the word 'Exit.' An emission is when gas or light 'exits' a source.
Word Origin
From the Latin 'emissio', derived from 'emittere', which means 'to send out' (e- 'out' + mittere 'send').
Grammar Patterns
Cultural Context
In modern English-speaking cultures, this word is heavily associated with climate change debates and environmental regulations.
Quick Quiz
The government has introduced stricter ___ standards for new diesel trucks.
Correct!
The correct answer is: emission
Related Vocabulary
Related Words
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.
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.
at
A1A preposition used to indicate a specific point, location, or position in space. It is also used to specify a particular point in time or a certain state or activity.
but
A1A coordinating conjunction used to connect two statements that contrast with each other. It is used to introduce an added statement that is different from what has already been mentioned.
his
A1This word is used to show that something belongs to or is associated with a male person or animal previously mentioned. It functions as both a possessive determiner used before a noun and a possessive pronoun used on its own.
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