emission

B2 Topic:Environment & Ecology

US /ˈɛmɪʃən/ UK /ɪˈmɪʃən/ See IPA manual

Freq #30602

Meanings

1

noun
A gas or substance released into the air, especially a polluting one.

The new law aims to cut carbon emissions from factories.
2

noun
The act of sending out light, heat, gas, or similar.

Scientists measured the emission of light from the distant star.

Thesaurus

Synonyms

1 noun · a gas or substance released... discharge

2 noun · the act of sending out... emanation issuance

Word family

Forms emissions

Derived forms emissionlessemissionsgateemitlow-emissionnonemissionphotoemissionreemissionsuperemissionzero-emission

Etymology

First attested in 1607. From Middle French émission, from Latin ēmissiō (“sending forth”), from ēmittō (“send out”), from ex (“from, out of”) + mittō (“send”).

émission Middle French ēmissiō Latin

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# emission

**Type:** Word
**Level:** B2
**Part of speech:** noun
**IPA (US):** /ˈɛmɪʃən/
**IPA (UK):** /ɪˈmɪʃən/
**Frequency rank:** 30602

## Meanings
1. A gas or substance released into the air, especially a polluting one.
2. The act of sending out light, heat, gas, or similar.

## Examples
- The new law aims to cut carbon emissions from factories.
- Scientists measured the emission of light from the distant star.

## Derived Forms
- emissionless
- emissionsgate
- emit
- low-emission
- nonemission
- photoemission
- reemission
- superemission
- zero-emission

## Roots and Affixes
- Root: émission
- Root: ēmissiō

## Etymology
First attested in 1607. From Middle French émission, from Latin ēmissiō (“sending forth”), from ēmittō (“send out”), from ex (“from, out of”) + mittō (“send”).

## AI Etymology
Emission is first attested in 1607. From Middle French émission, from Latin ēmissiō (“sending forth”), from ēmittō (“send out”), from ex (“from, out of”) + mittō (“send”). The historical chain includes émission (Middle French) and ēmissiō (Latin). The surrounding word family includes derived forms such as emissionless, emissionsgate, emit, and low-emission. In present use it covers a gas or substance released into the air, especially a polluting one and the act of sending out light, heat, gas, or similar.

## Topics
- Environment & Ecology

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emission

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