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emission

emission

57 3.5
An act of releasing something like gas, steam, light, or heat from a source
  • noun
  • /ɪˈmɪʃən/
translation icon : emisión
  • They have been able to reduce carbon emission levels to pre industrial revolution levels.
  • reduce emissions
  • emission reduction
  • emission control

Overall, the direct emissions from buildings come from heating them.

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Examples

  • But still, the main part of the problem is the emission of carbon dioxide from the burning of coal, oil, and gas.

  • A country such as China could simply choose to pull out of the international emissions-containment regime, undermining it completely.

    Academic text (2008)
  • But if the emission is cut off from the stone its properties are then lost

  • And that reduction in emission is shown here as a white region.

  • Finally, we need an agreement on an emission path from present emission levels to sustainable levels.

    Academic text (2011)
  • Overall, the direct emissions from buildings come from heating them.

  • A sustainable emission level can be defined as an emission level that would not cause any further climate warming.

    Academic text (2011)
  • The big opportunity to reduce greenhouse gas emissions is actually in urbanizing the suburbs.

  • It inhibits the emission of infrared or heat radiation.

  • The factory was fined for the illegal emission of toxic gases into the atmosphere.

Synonyms

radiation
vsemission
  • Specialized
438 4.5

Energy that comes out as rays or waves, like sunlight

is a general release action that can include many energy forms
emanation
vsemission
5 8.3

Something that comes out from a place, like gas, light or a smell

is the general act or process of releasing stuff from a source
fluorescence
vsemission
  • Specialized
5 6.7

Light appears when something takes in other light, like minerals or jellyfish

refers to releasing energy in many forms, not only immediate light
luminescence
vsemission
  • Specialized
2 7.0

Light that a material gives off without heat

is the broader releasing process that also covers heat-based output
phosphorescence
vsemission
  • Specialized
1 9.9

A glow that continues after the light is turned off

is the general act of sending out energy not limited to photons
emittance
vsemission
  • Specialized
1 8.2

A number that shows how well a surface gives off heat as radiation

is the simple term for the act of releasing or sending out
outgassing
vsemission
  • Specialized
1 8.5

Release of gas from a solid material into the air or space

is the broad process of releasing any substance, not only trapped gas
radio emission
vsemission
  • Specialized
1 5.2

A wave like radio signals that an object sends out

is the general act of sending out waves or particles across types
field emission
vsemission
  • Specialized
1 7.8

Electrons leave a material's surface when a strong electric field pulls them into empty space

is the broad term for releasing energy or material by any cause
extramission
vsemission
  • Specialized
9.9

The sending out of light or small particles from a source

is the broader name for any act of sending out from a source
reemission
vsemission
  • Specialized
7.8

To give out light or particles after something absorbs them

describes the original act of releasing rather than doing it again
infrared emission
vsemission
  • Specialized
5.7

Invisible light that warm things give off

is the overall process of sending out forms like light or heat
photoluminescence
vsemission
  • Specialized
8.4

Light a material gives out after it takes in light

refers broadly to releasing things regardless of continued aftereffects
photoemission
vsemission
  • Specialized
8.8

Electrons leave a material when light shines on it

is the wider process of sending out particles, waves, or substances
thermionic emission
vsemission
  • Specialized
9.1

Electrons escape from a hot metal surface

is the general act of releasing various things, not only electrons
thermal emission
vsemission
  • Specialized
6.8

The release of electrons from a material because it is very hot

is the general notion of sending out matter or energy from a source

Antonyms

absorption
  • Specialized
21 4.6

A material takes in energy or a substance from another material

Compounds

greenhouse emission
  • Specialized
3 3.8

A gas like carbon dioxide or methane that traps heat in the air and warms the planet

1 8.7

A natural release of semen during sleep, often during a dream

field emission
  • Specialized
1 7.8

Electrons leave a material's surface when a strong electric field pulls them into empty space

radio emission
  • Specialized
1 5.2

A wave like radio signals that an object sends out

1 6.0

A medical scan that shows how body parts use energy, often the brain

emission spectrum
  • Specialized
6.7

A set of bright lines or bands of light given off by something hot like a gas

8.6

A microscope that uses electrons to show a material's surface in very small detail

infrared emission
  • Specialized
5.7

Invisible light that warm things give off

7.4

When a material absorbs very strong light, it releases electrons

A machine that makes detailed pictures showing where the body uses energy

secondary emission
  • Specialized
8.9

Electrons that a surface sends out when hit by fast electrons or charged particles

thermal emission
  • Specialized
6.8

The release of electrons from a material because it is very hot

thermionic emission
  • Specialized
9.1

Electrons escape from a hot metal surface

How Much

eruption
4 4.3
emission
57 3.5
to discharge
12 4.4
outflow
  • Specialized
13 4.6
leak
290 1.0

Surface Forms

emission singular
emissions plural

Morphology

emission = emit (transparent) = emit + sion

Standard noun formation from the verb 'emit' using the noun-forming suffix '-sion'; the meaning 'the act or process of releasing' follows directly from the verb.

Etymology

Emission comes from Latin parts e- 'out' and mittere 'to send', and it is the same root as the verb emit 'to send out'. So an emission is the action of sending something out, like steam, light, or sound.