An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 12955 Search : far
emission band
  باند ِ گسیلی   
bând-e gosili

Fr.: bande d'émission   

In a spectrum, a combination of several closely spaced, often unresolved, → emission lines occurring across a limited range of wavelengths.

emission; → band.

emission coefficient
  همگر ِ گسیل   
hamgar-e gosil

Fr.: coefficient d'émission   

Electromagnetic flux emitted by a source per unit volume per unit time.

emission; → coefficient.

emission feature
  آرنگ ِ گسیل   
ârang-e gosil

Fr.: motif d'émission   

Any emission mark in the spectrum of a celestial object resulting from line formation or of unknown origin.

emission; → feature.

emission line
  خط ِ گسیلی   
xatt-e gosili (#)

Fr.: raie d'émission   

A bright line in the electromagnetic spectrum of a radiating substance caused by emission at a particular wavelength.

emission; → line.

emission measure
  اندازه‌ی ِ گسیل   
andâze-ye gosil

Fr.: mesure d'émission   

The product of the square of the electron density times the linear size of the emitting region (in parsecs).

emission; → measure.

emission nebula
  میغ ِ گسیلی   
miq-e gosil-i

Fr.: nébuleuse en émission   

An ionized nebula whose spectrum consists of → emission lines. → planetary nebula; → H II region.

emission; → nebula.

emission spectrum
  بیناب ِ گسیلی   
binâb-e gosili (#)

Fr.: spectre d'émission   

A spectrum consisting of emission lines, produced when the light does not undergo absorption between the source and the spectrograph.

emission; → spectrum.

emissive
  گسیلی، گسیلشی   
gosili, gosileši

Fr.: émissif   

1) Able to emit (radiation, light, or heat).
2) Pertaining to → emission.

Verbal adj. from → emit.

emissive power
  توان ِ گسیلی، ~ گسیلشی   
tavân-e gosili, ~ gosileši

Fr.: pouvoir émissif   

The energy emitted from unit surface area of body per second.

emissive; → power.

emissivity
  گسیلندگی   
gosilandegi (#)

Fr.: émissivité   

The ratio of energy radiated by a material to energy radiated by a black body at the same temperature.

emissive + → -ity.

emit
  گسیلیدن   
gosilidan (#)

Fr.: émettre   

To send forth (liquid, light, heat, sound, particles, etc.).

Verb of → emission.

Gosilidan, infinitive of gosil, → emission.

emitter
  گسیلنده   
gosilandé (#)

Fr.: émetteur   

Any device used to emit light, sound, electrons, or the like.

Agent noun of → emit.

emperor
  پرماتیار، امپراتور، شاهنشاه   
parmâtyâr, emperâtur, šâhanšâh

Fr.: empereur   

A monarch who rules or reigns over an empire.

M.E., from O.Fr. empereor "emperor, leader, ruler," from L. imperiatorem (nominative imperiator) "commander, emperor," from p.p. stem of → imperare "to command."

Parmâtyâr, from parmât, present stem of parmâtidan, → imperare, + suffix -yâr, as in šahryâr "sovereign, king," hušyâr "sober, cautious, intelligent," kušyâr "name of a physician; industrious" kâmyâr "happy, powerful," and baxtyâr "fortunate, rich."

emphasis
  براوژ   
barâvaž

Fr.: accentuation, accent   

Special stress laid upon, or importance attached to (Dictionary.com).

From L. emphasis, from Gk. emphasis "significance, implied meaning," from emphainein "to show, indicate," from en "in" + phainein "to show." It developed a sense of "extra stress" laid on a word or words to make the significance clear, or to show their importance.

Barâvaž, present stem of barâvažidan, literally "to speak loudly," from bar- "on, upon, up," → over-, + âvaž variant of âvâz "voice, sound, noise, clamour," cf. Sariqoli awuj "voice, sound," Wakhi awôγ "voice, sound," related to vâž, → word.

emphasize
  براوژیدن   
barâvažidan

Fr.: appuyer sur, insister sur, souligner   

To give → emphasis to; lay stress upon; stress (Dictionary.com).

emphasis + → -ize.

emphatic
  براوژی   
barâvaži

Fr.: énergique, catégorique   

1) Uttered, or to be uttered, with emphasis; strongly expressive.
2) Using emphasis in speech or action (Dictionary.com).

From Gk. emphatikos, variant of emphantikos, from emphainein, → emphasis.

Barâvaži, from barâvaž + -i adj. suffix.

empire
  پرماتگان، امپراتوری، شاهنشاهی   
parmâtgân, emperâturi, šâhanšâhi

Fr.: empire   

1) A political unit having an extensive territory or comprising a number of territories or nations and ruled by a single supreme authority.
2) The territory included in such a unit (TheFreeDictionary).

M.E., from O.Fr. empire "rule, authority, kingdom," from L. imperium "command, dominion, sovereignty," from → imperare "to command."

Parmâtgân, from parmât, present stem of parmâtidan, → imperare, + -gân suffix denoting relation and place appearinfg in the name of lands and localities (Šâpurgân, Gorgân, Golpâyegân, etc.).

empirical
  آروینی   
ârvini (#)

Fr.: empirique   

Based on the results of → experiment and → observation only, without → theory.

From L. empiricus, from Gk. empeirikos "experienced," from empeiria "experience," from empeiros "skilled," from en- "in" + peira "experiment."

Ârvini, adj. of ârvin "experience, experiment, test," from prefixed Av. vaēn- (Mod.Pers. bin, present stem of didan "to see, look") "to see," aibī-vaēn- "to look, notice;" cf. Parthian Mid.Pers. frwyn- "to foresee," frwyng "foreseeing," frwyngyft "foresight," from Proto-Iranian *fra-uain.

empirical formula
  دیسول ِ آروینی   
disul-e ârvini

Fr.: formule empirique   

1) In physics, a mathematical equation that predicts observed results, but has no known theoretical basis to explain why it works.
2) In chemistry, a simple expression of the relative number of each type of atom in a chemical compound.

empirical; → formula

empirical science
  دانش ِ آروینی   
dâneš-e ârvini

Fr.: science empirique   

A branch of knowledge, including → natural sciences and → social sciences, that is based on observable phenomena and must be capable of being verified by observation.

empirical; → science.

<< < -es -iv -ti 21- A r abe abs abs acc acc acc act act ada adi adu aff age alc Alf ali all alp alt ama amp ana ang ang ann ano ant ant ape apo app aps arc Arg ari art ass ast ast ast atm ato att aur aut axi B r bac Bal Bar Bar Bay bec Ber Bet Bie bij bin bio bis bla bla blu blu bol Bor bou Bra bre bro Bug C-s cal Cam can car Car Cas cat cav cel cen cer Cha cha cha che cho cir cir cir cla clo clo clu coa coe coh col col col com com com com com com com com com con con con con con con con con con con con coo cor cor cor cos cos cos Cou cou Cra Cre cri cro cub cur cyc cyl dar dat daw de- Deb dec dec dee def deg del Den dep der det deu dew dic dif dif dil dip dir dis dis dis dis dis diu dog Dop dou Dra dua dus dwa dyn e-f Ear ecl eco edu eig Ein ela ele ele ele Ele elo emi emp ene Enl env epi equ equ Eri est Euc eva evo exc exc exh Exo exp exp ext ext f(R fac fam fat fee Fer Fib fig fin fir fix fle flu foc for for for fra fre Fre fri fun fuz Gal gal gal Gam gau Gay gen Geo geo geo geo gim glo gov gra gra gra gra gre gro Gun hab hal han Har haz hea hel hel Hen Her het Hig hil hol Hoo hor hou Hub hum hyd hyd hyd hyp hys ide ign ima imp imp inc inc ind Ind inf inf inf inf inn ins ins int int int int int int int int inv ion ion Irr iso iso iso jan jit Jul jus Kel ker kin kni La lam lan Lap las lat Lay Led Len let lif lig lin lin lin liq Lit loc log lon lou low lum lun Lym M d Mag mag mag mag mag mag maj man mar mas mas mat mea mea mec mem mer Mes met met mho mic Mie Mil min mis MKS MOd mol Mon moo mot mul mul myo nak Nas nat neb neg neu neu New New nit noi non non nor nor nuc nuc nul nut obj obl obs occ oct off oli oni ope opp opt opt orb ord org orp osc out ove oxi pai Pan par par Par par pas Pav Pel per per per per Per per pha phi pho pho pho phy Pip Pla pla PLA pla ple plu pol pol pol pol pop pos pos pot Pra pre pre pre Pri pri pri pro pro pro pro pro pro pro Pto pul pur qua qua qua qua qui rad rad rad rad rad rad rai ran rar Ray rea rea rec rec red red ref ref reg rel rel rel rep res res res res ret RHB rid rig ris roc Ros rot rub Rut Sag sam sat sca sca Sch sci Sea sec sec see sel sem sen set Sha sha shi shu sid sil sim sin SIS ski Slo smo Soc sol sol sol sol son sou spa spa spe spe spe sph spi spi Spo squ sta sta sta sta Ste ste ste sto str str str sub sub suc sun sup sup sup sup sur Swa syn syn tab tar tel tem ter tes the the the the Tho thr tid tim Tit top tot tra tra TRA tra tre tri tri tru Tun Tus tym Typ ult unb und uni uni uns upp Urs vac van var Vei Ven ver vic Vir vir vis vol W 4 war wat wav wea wed wet wid win WN2 Wol wri xen yok zen zin > >>