An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 12948 Search : far
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.

empiricism
  آروین‌باوری، آروین‌گرایی   
ârvin-bâvari, ârvin-geraayi

Fr.: empirisme   

1) Philo.: The doctrine that all → knowledge of matters of fact derives from experience and that the mind is not furnished with a set of concepts in advance of experience.
2) The use of empirical methods (Dictionary.com).

From empiric, → empirical, + → -ism.

<< < -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 div dog Dop dou dra dua dus dwa dyn e-m ear ecl eco eff ein Ein elb ele ele ele ele Els emi emp ene enr env epi equ equ Eri est Euc eva evo exc exc exh exo exp exp ext ext f-n Fah fam fau fee Fer fib fil fin fir fix fle flu foc for for for fra fre fre fri fun fuz gal gal gal Gan gau GCN gen geo geo geo geo Gl glo gra gra gra gra gra gre gro GW1 hab hal han HAR haz hea hel hel Hen Her heu Hig Hil hol hop hor hou Hub Hum Hyd hyd hyd hyp hys ide ign ima imp imp inc inc ind ine inf inf inf inh INP ins ins int int int int Int int int int inv ion iri irr iso iso iso Jea Jos Jun K2 Kep key kin Kol lag lam Lan lar las lav lea leg len lev lig lim lin lin lin lis lob loc log lor low lum lun lun Lym Mac mag mag mag mag mag mai Mal mar mas mas mat max mea mea mee Men mer met met met mic mid Mil min Mir mix mod mod mol mon Mor mou mul muo mys nan nat nav nec Nep neu New New NGC nob nom non non nor not nuc nuc num Nyq obj obs obs oce oen OH omn opa ope opt opt opt orb ord Ori ort osc out ove oxy pal pan par Par par par pas pea Pen per per per per per pet pha pho pho pho phy pie Pit Pla pla pla pla ple Poi pol pol pol pol pop pos pos pow pre pre pre Pre pri pri pri pro pro pro pro pro pro Pro pub pul pyr qua qua qua qua Qui rad rad rad rad rad rad ram ran rat rea rec rec rec red ref ref reg reg rel rel rem rep res res res ret rev rho Rie rim riv rol Ros rot rul S a Sah san Sat sca Sch Sch scr sec sec sec sei sel sem sep set sha she sho sid sig sil sim sin sit sky slu sno sof sol sol sol sol sou sou spa spa spe spe spe sph spi spl spr sta sta sta sta sta ste ste sti sto str str sub sub sub sug sun sup sup sup sup sur syl syn sys tal Tay tel ten ter tex the the the thi tho thu tid tim tod top tot tra tra tra tra tri tri tro tru tur twi Typ UFO ult unc uni uni uni upg ura uti val var vec vel ver ver vig vir vis voc von wak Was wav wax wea wei whi Wie win WN6 wom X-r yel you zer zod > >>