emission


Also found in: Thesaurus, Medical, Legal, Acronyms, Encyclopedia, Wikipedia.

e·mis·sion

 (ĭ-mĭsh′ən)
n.
1. The act or an instance of emitting.
2. Something emitted.
3. A substance discharged into the air, especially by an internal combustion engine.

[Latin ēmissiō, ēmissiōn-, a sending out, from ēmissus, past participle of ēmittere, to send out; see emit.]

emission

(ɪˈmɪʃən)
n
1. the act of emitting or sending forth
2. (General Physics) energy, in the form of heat, light, radio waves, etc, emitted from a source
3. a substance, fluid, etc, that is emitted; discharge
4. (General Physics) a measure of the number of electrons emitted by a cathode or electron gun: at 1000°C the emission is 3 mA. See also secondary emission, thermionic emission
5. (Physiology) physiol any bodily discharge, esp an involuntary release of semen during sleep
6. (Banking & Finance) an issue, as of currency
[C17: from Latin ēmissiō, from ēmittere to send forth, emit]
eˈmissive adj

e•mis•sion

(ɪˈmɪʃ ən)

n.
1. an act or instance of emitting.
2. something emitted.
3. an official act of issuing, as paper money.
4. a measure of the number of electrons emitted by the heated filament or cathode of a vacuum tube.
5. an ejection or discharge of semen or other fluid from the body.
[1600–10; (< Middle French) < Latin ēmissiō]

e·mis·sion

(ĭ-mĭsh′ən)
1. The act or process of emitting: For environmental safety we must seek to reduce the factory's emission of fumes and smoke.
2. Something that is emitted: harmful emissions from automobiles.
emit, emission, emissary - Emit, emission, and emissary come from Latin emittere, "send out," and emit once meant "publish a book or notice."
See also related terms for notice.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.emission - the act of emitting; causing to flow forth
egression, egress, emergence - the act of coming (or going) out; becoming apparent
radiation - the act of spreading outward from a central source
venting, discharge - the act of venting
2.emission - a substance that is emitted or released
material, stuff - the tangible substance that goes into the makeup of a physical object; "coal is a hard black material"; "wheat is the stuff they use to make bread"
exudate, exudation - a substance that oozes out from plant pores
transudate, transudation - a substance that transudes
effluvium - a foul-smelling outflow or vapor (especially a gaseous waste)
rheum - a watery discharge from the mucous membranes (especially from the eyes or nose)
vaginal discharge - discharge of secretions from the cervical glands of the vagina; normally clear or white
3.emission - the release of electrons from parent atoms
photoemission - an emission of photoelectrons (especially from a metallic surface)
field emission - the emission of electrons that are stripped from parent atoms by a high electric field
photoelectric emission - the release or absorption of quanta above a certain energy level
radioactivity, radiation - the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
release - a process that liberates or discharges something; "there was a sudden release of oxygen"; "the release of iodine from the thyroid gland"
secondary emission - the emission of electrons from a surface that is bombarded by higher energy primary electrons
thermal emission, thermionic emission - the emission of electrons from very hot substances
4.emission - any of several bodily processes by which substances go out of the body; "the discharge of pus"
bodily function, bodily process, body process, activity - an organic process that takes place in the body; "respiratory activity"
ejaculation - the discharge of semen in males
excreting, excretion, voiding, elimination, evacuation - the bodily process of discharging waste matter
menses, menstruation, catamenia, menstruum, period, flow - the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause; "the women were sickly and subject to excessive menstruation"; "a woman does not take the gout unless her menses be stopped"--Hippocrates; "the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females"--Aristotle
5.emission - the occurrence of a flow of water (as from a pipe)
flow, flowing - the motion characteristic of fluids (liquids or gases)

emission

noun giving off or out, release, shedding, leak, radiation, discharge, transmission, venting, issue, diffusion, utterance, ejaculation, outflow, issuance, ejection, exhalation, emanation, exudation the emission of gases such as carbon dioxide
Translations
إرْسال، إصْدار، إنْبِعاث
afgivelseudstråling
sending
emisia

emission

[ɪˈmɪʃən]
A. N
1. [of light, smell] → emisión f (Anat) [of semen] → expulsión f
2. emissions (= fumes) → emisiones fpl
B. CPD emission controls NPLcontroles mpl de emisiones

emission

[ɪˈmɪʃən]
n (= release) [gas, radiation] → émission f
modif [standards, levels] → d'émissions
npl emissions (= substances released) → émissions fpl
carbon dioxide emissions → émissions de dioxyde de carbone
greenhouse gas emissions → émissions de gaz à effet de serre
exhaust emissions → émissions de gaz d'échappement

emission

nAusstrahlung f, → Abstrahlung f; (of fumes, X-rays)Emission f (spec); (of gas, smell)Verströmen nt, → Ausströmen nt; (of liquid)Ausströmen nt; (gradual) → Absonderung f, → Abscheidung f; (of vapour, smoke: continuous) → Abgabe f; (of lava)Ausstoßen nt; (of sparks)Versprühen nt

emission

[ɪˈmɪʃn] n (of fumes, gas) → esalazione f

emit

(iˈmit) verbpast tense, past participle eˈmitted
to give out (light, heat, a sound, a smell etc).
eˈmission (-ʃən) noun

e·mis·sion

n. emisión, salida de líquido; derrame;
nocturnal ______ nocturna, escape involuntario de semen durante el sueño.
References in classic literature ?
The imposition of duties on imported articles, and the emission of paper money, are specimens of each kind.
A small column of smoke rose through a chimney of sticks, cemented with clay, along the side of the rock, and had marked the snow above with its dark tinges, in a wavy line, from the point of emission to an other, where the hill receded from the brow of a precipice, and held a soil that nourished trees of a gigantic growth, that overhung the little bottom beneath.
Here he took his post beside the aperture for the emission of smoke and the admission of light; the chief dictated from within what he was to proclaim, and he bawled it forth with a force of lungs that resounded over all the village.
The federal administration, though hitherto very defective in comparison with what may be hoped under a better system, had, during the war, and particularly whilst the independent fund of paper emissions was in credit, an activity and importance as great as it can well have in any future circumstances whatever.
With the BLUETEC system, the engine and aftertreatment systems have to work more closely together than in any other emission system.
Supreme Court justices on Wednesday began weighing whether to force the federal EPA to regulate tailpipe emissions in a high-stakes case that could test California's new greenhouse gas laws and set the stage for congressional action on global warming.
The first tier of emission regulations for off-road diesel engines arrived in 1994.
Retrofitting existing fleets to clean up their emissions, especially in non-attainment zones, is also likely to grow.
This regulatory body approves applications for Joint Implementation and Clean Development Mechanism projects, and monitors their progress to ensure they are delivering measurable greenhouse gas reductions before carbon emission reductions credits are earned.
Of the 9,000 premature deaths reported annually in California from ambient levels of ozone and PM pollution, CARB attributes some 8% to emissions from ports and international goods movement, according to the board's Draft Emission Reduction Plan for Ports and International Goods Movement.