emission
gb/ɪmˈɪʃən/ us/ɪmˈɪʃən/
B2
Inglés
~ 6400
Acepciones
0 acepciones
Sustantivo
B2
event
1
act of sending out gas or energy
the act of giving out gas, light, heat, or similar from a place or object, often into the air
Patrón de uso:
the emission of [gas/light/heat/sound] from [source]
Error frecuente:
Learners sometimes confuse 'emission' with 'emissionS'. 'Emission' (singular) is usually the act or process of sending something out, while 'emissions' (plural) often refers to the gases themselves. They may also mix up 'emission' with 'omission', which means leaving something out.
Sinónimos
release (Very general word for letting something go out; does not especially suggest pollution or energy the way 'emission' often does.)
|
discharge (Often used for the flow or sending out of liquids, gases, or electricity; slightly more technical or formal in this context.)
Antónimos
absorption (Focuses on taking in energy or substances rather than sending them out.)
|
capture (Describes actively collecting or trapping gases or energy instead of releasing them.)
Colocaciones
the emission of greenhouse gases
|the emission of radiation
|the emission of light
|emission standards
|emission controls
|emission levels
Temas
environment
|science
|technology
|core_vocabulary
Ejemplos
- The emission of greenhouse gases from power plants has increased in recent years.
- This sensor measures the emission of light from the device during normal operation.
- New regulations aim to limit the emission of harmful particles into the atmosphere.
- The sudden emission of a loud noise startled everyone in the room.
- Solar panels reduce the emission of carbon dioxide by replacing fossil fuels.
Ejemplos para estudiantes
- The emission of smoke from the factory was very strong.
- This lamp has a soft emission of light.
- Scientists study the emission of radiation from the sun.
- The law controls the emission of dirty gas into the air.
Sustantivo
B2
entity
2
polluting gases that are released
gases or small particles that go into the air from cars, factories, and other things, usually making the air dirty
Patrón de uso:
emissions from [cars/factories/source]
Error frecuente:
Learners often forget that 'emissions' in this sense is almost always plural when talking about pollution (e.g. 'carbon emissions', not usually 'carbon emission'). They may also incorrectly say 'gas emissions' when 'exhaust fumes' or 'air pollution' might be more natural in some contexts.
Sinónimos
pollutants (Broader term for harmful substances in the air, water, or soil; not limited to gases like 'emissions' often is.)
|
output (General word for what comes out of a process; less specific about pollution and environmental impact.)
Antónimos
clean air (Refers to air without harmful substances, which is what reducing emissions is meant to achieve.)
|
zero emissions (Describes a situation where no polluting gases are released at all.)
Colocaciones
carbon emissions
|greenhouse gas emissions
|vehicle emissions
|industrial emissions
|CO2 emissions
|emissions targets
Temas
environment
|transport
|industry
|science
|nature
Ejemplos
- The government plans to cut carbon emissions by 50% by 2030.
- Electric cars produce no tailpipe emissions during normal driving.
- Many cities now monitor vehicle emissions to improve air quality.
- New technology can capture emissions before they enter the atmosphere.
- Heavy industrial emissions have damaged local forests and lakes.
Ejemplos para estudiantes
- Car emissions make the air in the city dirty.
- The company wants to reduce its emissions.
- Power station emissions are bad for the climate.
- Buses with clean fuel have lower emissions.
Sustantivo
technical
C1
action
3
issuing new shares or currency
the act of a company or government putting new shares, bonds, or money into the market so people can buy them
Patrón de uso:
the emission of [shares/bonds/currency]
Sinónimos
issue (More common everyday and technical term in finance for putting new securities or money into circulation.)
|
placement (Focuses more on how the new securities are sold or distributed to investors, not just the act of creating them.)
Antónimos
redemption (Refers to paying back or buying back bonds or other securities, which removes them from circulation.)
|
withdrawal (General term for taking something out of circulation, the opposite direction of an emission in this sense.)
Colocaciones
emission of shares
|emission of bonds
|emission of securities
|emission price
|public emission
Temas
business
|finance
Ejemplos
- The emission of new shares significantly diluted existing shareholders' stakes.
- Regulators must approve the emission of government bonds before they can be sold on the market.
- The bank advised on the emission of a large euro-denominated bond.
- The emission price was set below the current market value to attract investors.
Ejemplos para estudiantes
- The company planned the emission of new shares.
- The government announced the emission of long-term bonds.
- Banks help with the emission of securities for big projects.
Sustantivo
technical
C2
event
4
release of semen from body
the release of semen from a man’s body, often when he is sleeping and does not control it
Patrón de uso:
a nocturnal emission
Sinónimos
ejaculation (More common medical and everyday term; often used for sexual activity in general, not only during sleep.)
Antónimos
retention (General term for holding a bodily fluid instead of releasing it.)
Colocaciones
nocturnal emission
|seminal emission
|involuntary emission
|frequency of emissions
Temas
health
|biology
|body
Ejemplos
- During puberty, many boys experience occasional nocturnal emissions.
- The doctor explained that a nocturnal emission is a normal part of sexual development.
- Anxiety about nocturnal emissions is common among some adolescents.
Ejemplos para estudiantes
- The boy was worried about his first nocturnal emission.
- A nocturnal emission can happen when a boy is sleeping.
- Doctors say nocturnal emissions are normal for teenagers.
Gramática
Forma de diccionario
emission
AFI
GB/ɪmˈɪʃən/
US/ɪmˈɪʃən/
Sílabas y acento
emis - sion (2 sílabas)
Stress on 2nd syllable (sion)
Formas de la palabra
Noun
- Base: emission
- Plural: emission, emissions
Familia de palabras
Forms
emissions
noun
Core family
emit
verb B2
Related words
emitter
noun
Negative and opposite forms
emissionless
adjective
Advanced or less common
emissive
adjective
emissivity
noun
Expresiones
carbon emissions
1/kˈɑɹbən ɪmˈɪʃənz/
fixed phrase
carbon dioxide and related gases released
gases like carbon dioxide that go into the air when we burn coal, oil, gas, and other fuels
Ejemplos
- The report shows that carbon emissions from transport are still rising.
- Many countries have set goals to reach net-zero carbon emissions by 2050.
- Switching to renewable energy is the best way to cut carbon emissions.
emission standards
1/ɪmˈɪʃən stˈændɚdz/
fixed phrase
legal limits on pollution levels
official rules that say how much dirty gas cars or factories can send into the air
Ejemplos
- The EU has introduced stricter emission standards for new cars.
- Factories must upgrade their equipment to meet the latest emission standards.
- Environmental groups say current emission standards are still too weak.
emissions trading
1/ɪmˈɪʃənz tɹˈeɪdɪŋ/
fixed phrase
technical
market system for pollution rights
a system where companies trade permits that say how much gas they are allowed to send into the air
Ejemplos
- Emissions trading is used in many countries to control carbon dioxide output.
- The price of carbon in the emissions trading system has risen sharply.
- Some experts argue that emissions trading is the most efficient way to cut pollution.
exhaust emissions
1/ɪɡzˈɔst ɪmˈɪʃənz/
fixed phrase
gases from an engine’s exhaust
the gases that come out of the back of a car, bus, or other machine when the engine runs
Ejemplos
- Modern filters can greatly reduce exhaust emissions from diesel engines.
- The city plans to limit exhaust emissions in the center to improve air quality.
- Tests showed that the car’s exhaust emissions were higher than legal limits.
nocturnal emission
1/nɑktˈɚnəl ɪmˈɪʃən/
fixed phrase
technical
involuntary semen release during sleep
when semen comes out of a man’s body while he is sleeping and he does not control it
Ejemplos
- The doctor reassured him that a nocturnal emission is completely normal during puberty.
- Many health guides include information about nocturnal emission for teenagers.
- A nocturnal emission is sometimes called a “wet dream” in everyday language.
nocturnal emission
1/nɑktˈɚnəl ɪmˈɪʃən/
fixed phrase
formal
sexual ejaculation during sleep
A “wet dream”; ejaculation while sleeping.
Ejemplos
- Nocturnal emissions are common during puberty.
- He asked the doctor whether frequent nocturnal emissions were normal.
tailpipe emissions
1/tˈeɪlpˌaɪp ɪmˈɪʃənz/
fixed phrase
gases from a vehicle’s tailpipe
gases that come straight out of the exhaust pipe of a car or other vehicle
Ejemplos
- Electric cars produce zero tailpipe emissions during driving.
- The law sets strict limits on tailpipe emissions for new vehicles.
- Tailpipe emissions are measured during the annual inspection.
vehicle emissions
1/vˈiɪkəl ɪmˈɪʃənz/
fixed phrase
polluting gases from vehicles
dirty gases that come out of cars, buses, and trucks and go into the air
Ejemplos
- Vehicle emissions are a major cause of air pollution in big cities.
- The new rules will force carmakers to cut vehicle emissions.
- Public transport can help reduce vehicle emissions on busy roads.
zero emissions
1/zˈɪɹoʊ ɪmˈɪʃənz/
fixed phrase
state with no polluting output
a situation where something does not send any dirty gases into the air
Ejemplos
- The country hopes to achieve zero emissions by the middle of the century.
- Hydrogen buses can offer almost zero emissions at the point of use.
- The company promises zero emissions from its operations by 2040.
greenhouse gas emissions
1/ɡɹˈinhˌaʊs ɡˈæs ɪmˈɪʃənz/
fixed phrase
release of heat-trapping gases
the sending of gases like CO2 and methane into the air, which make the earth warmer
Ejemplos
- Greenhouse gas emissions must fall quickly to limit global warming.
- The energy sector is responsible for most greenhouse gas emissions worldwide.
- New policies aim to reduce greenhouse gas emissions from industry and farming.
greenhouse gas emissions
2/ɡɹˈinhˌaʊs ɡˈæs ɪmˈɪʃənz/
fixed phrase
technical
Release of warming gases
The amount of greenhouse gases that go into the air from cars, factories, farms, and other sources.
Ejemplos
- Many countries have promised to reduce their greenhouse gas emissions by 2050.
- Switching to renewable energy can cut greenhouse gas emissions from power plants.
- The city tracks greenhouse gas emissions from buildings and transport each year.