emission

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emission

1. energy, in the form of heat, light, radio waves, etc., emitted from a source
2. a measure of the number of electrons emitted by a cathode or electron gun
3. Physiol any bodily discharge, esp an involuntary release of semen during sleep

emission

1. The release of light or other radiation from an excited atom or molecule, or the radiation so emitted. See emission spectrum; nonthermal emission; thermal emission.
2. The liberation of electrons from the surface of a solid or liquid. See photoelectric effect.

emission

[i′mish·ən]
(electromagnetism)
Any radiation of energy by means of electromagnetic waves, as from a radio transmitter.
(meteorology)
A natural or anthropogenic discharge of particulate, gaseous, or soluble waste material or pollution into the air.

emission

The radiation of energy (for example, electromagnetic, heat, light, or sound).
References in periodicals archive ?
It is a step back compared to the black and white targets in a communication the Commission adopted in February 2007 on the strategy for reducing CO2 emmissions for vehicles(1), in which the limit was fixed at 175 grammes in 2012 with an intermediary target of 160 grammes in 2015.
The state requirements, adopted in 2002, begin with 2009 model-year vehicles and mandate a 30% reduction of greenhouse-gas emmissions.
The UK is responsible for just 2% globally of CO2 emmissions which for some reason excludes air transport.
Environment: One need not be a left-wing environmentalist to know that if you have emmissions, you have pollution.
Fuel consumption has also been improved on both models as have CO2 emmissions.
But it is expected to warn more research is needed into possible effects of radiation emmissions.
Offers line of mixed metal, liquid and powder stabilizers for flexible PVC, including solvent-free liquid stabilizers that allow low emmissions and are suitable for automotive, low-flame spread, and plastisol coating applications.
Like Baliunas and Jastrow, Lean's group took an approach that revolves around observations of th sun's calcium emmissions, which relate to the vigor of the magnetic activityd on the sun's surface.
Expansion of CNG service would help cities breathe easy by reducing vehicular emmissions and offering cheaper fuel option.
Government climate change policies provide massive subsidies to the owners of wind farms, but do little to reduce emmissions.
The more people there are on the planet the more energy they will use - about 750 tonnes of carbon emmissions each, the equivalent of 620 trans-Atlantic flights.