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: 12942 Search : far
nourishment
  فارمان   
fârmân

Fr.: nourriture   

1) Something that nourishes; food, nutriment, or sustenance.
2) The act of nourishing. The state of being nourished (Dictionary.com).

M.E. norysshement, from M.Fr. norissement, → nourish, → -ment.

Fârmân, noun from fâridan (like sâzmân, sâxtemân, câymân, râžmân, and others).

nova
  نووا، نو‌اختر   
novâ, now-axtar (#)

Fr.: nova   

A star that experiences a sudden increase in → luminosity, by a s much as 106. The → outburst ejects a shell of matter but does not disrupt the star.

Nova, from L. stella nova "new star," from stellastar + nova, fem. of novusnew.

Novâ, from now, → new; now-axtar "new star," from now, as above, + axtar, → astro-.

novel
  نوال، رمان   
novâl, român (#)

Fr.: roman   

A fictitious prose narrative of considerable length and complexity, portraying characters and usually presenting a sequential organization of action and scenes (Dictionary.com).

From It. novella (storia) "new kind of story," from L. novellus "new, young, recent," → new.

Novâl, from now, → new, + -âl, → -al. Român, from Fr. roman, from V.L. *romanice "in the manner of Romans."

nozzle
  کلپ   
kalap

Fr.: 1) bec; 2) tuyère   

1) Tha end part of a → pipe, → hose, or → tube through which a → stream of → fluid is directed.
2) A part in a → rocket → engine that accelerates the exhaust gases from the combustion chamber to a high → velocity.

M.E. noselle, diminutive of → nose.

Kalap "the beak of a bird" (Biruni, at-Tafhim), may be from *galap-, ultimately from Proto-Ir. *ui-lap-; cf. Mid.Pers. lap "lip," Mod.Pers. lab cognate with L. labium, E. lip.

nozzle throat
  گلو‌ی ِ کلپ   
galu-ye kalap

Fr.: col de tuyère   

The portion of a nozzle with the smallest → cross section.

nozzle; → throat.

nuance
  ساگن   
sâgen

Fr.: nuance   

1) A subtle difference or distinction in expression, meaning, response, etc.
2) A very slight difference or variation in color or tone (Dictionary.com).

From Fr. nuance "shade of color, hue," from nuer "to shade," from nue "cloud," from L. nubes "a cloud, mist, vapor," → nebula.

Sâgen, from Xoyini sâgené "shade, shadow," related to sâyé, → shadow.

nuclear
  هسته‌ای   
haste-yi (#)

Fr.: nucléaire   

Of or pertaining to a → nucleus.

From nucle(us), → nucleus, + -ar variant of the adjective-forming suffix → -al.

Haste-yi, from hasté, → nucleus, + -i adjective-forming suffix.

nuclear barrier
  ورغه‌ی ِ هسته‌ای   
varqe-ye haste-yi (#)

Fr.: barrière nucléaire   

The region of high potential energy through which a charged particle must pass on entering or leaving an atomic nucleus. → Gamow barrier.

nuclear; → barrier.

nuclear burning
  سوزش ِ هسته‌ای   
suzeš-e haste-yi

Fr.: combustion nucléaire   

A → nuclear reaction inside a star that produces the energy to make the star shine and also transform chemical elements into others.

nuclear; → burning.

nuclear charge
  بار ِ هسته‌ای   
bâr-e haste-yi (#)

Fr.: charge nucléaire   

The positive electric charge on the nucleus of an atom.

nuclear; → charge.

nuclear combustion
  سوزش ِ هسته‌ای   
suzeš-e haste-yi

Fr.: combustion nucléaire   

nuclear burning.

nuclear; → combustion.

nuclear cross-section
  سکنج‌گاه ِ هسته‌ای   
sekanjgâh-e hasteyi

Fr.: section efficace nucléaire   

Apparent cross-section possessed by an atomic nucleus when it undergoes a particular type of collision process.

nuclear; → cross section.

nuclear density
  چگالی ِ هسته‌ای   
cagâli-ye haste-yi (#)

Fr.: densité nucléaire   

The density of an atomic nucleus (about 1014 g/cm3).

nuclear; → density.

nuclear energy
  کاروژ ِ هسته‌ای   
kâruž-e haste-yi

Fr.: énergie nucléaire   

Energy released during a nuclear reaction as the result of the conversion of mass into energy. → mass-energy equivalence.

nuclear; → energy.

nuclear fission
  شکافت ِ هسته‌ای   
šekâft-e haste-yi (#)

Fr.: fission nucléaire   

A → nuclear reaction in which a heavy atomic nucleus splits into two or more approximately equal parts, usually as the result of the capture of a slow, or → thermal neutron by the nucleus. It is normally accompanied by the emission of further neutrons or → gamma rays and very large amounts of energy. The neutrons can continue the process as a → chain reaction, so that it becomes the source of energy in a → nuclear reactor or an atomic bomb. It may also be a trigger for → nuclear fusion in a hydrogen bomb. Fission occurs spontaneously in nuclei of uranium-235, the main fuel used in nuclear reactors.

nuclear; → fission.

nuclear force
  نیروی ِ هسته‌ای   
niru-ye haste-yi (#)

Fr.: force nucléaire   

The attractive force which acts between nucleons when they are extremely close together (closer than 10-13 cm).

nuclear; → force.

nuclear fuel
  سوخت ِ هسته‌ای   
suxt-e haste-yi (#)

Fr.: combustible nucléaire   

A substance, such as uranium-238 or plutonium-239, which undergoes nuclear fission in a nuclear reactor.

nuclear; → fuel.

nuclear fusion
  ایوش ِ هسته‌ای   
iveš-e haste-yi

Fr.: fusion nucléaire   

A → nuclear reaction between atomic nuclei as a result of which a heavier → atomic nucleus is formed, a small fraction of mass is lost, and a large quantity of energy is released. Nuclear fusion is the source of the energy of stars.

nuclear; → fusion.

nuclear magnetic resonance (NMR)
  باز‌آوایی ِ مغناتیسی ِ هسته‌ای   
bâzâvâyi-ye meqnâtisi-ye haste-yi

Fr.: résonance magnétique nucléaire   

An analysis technique applied to some atomic nuclei that have the property to behave as small magnets and respond to the application of a magnetic field by absorbing or emitting electromagnetic radiation. When nuclei which have a magnetic moment (such as 1H, 13C, 29Si, or 31P) are submitted to a constant magnetic field and at the same time to a radio-frequency alternating magnetic field, the nuclear magnetic moment is excited to higher energy states if the alternating field has the specific resonance frequency. This technique is especially used in spectroscopic studies of molecular structure and in particular provides valuable information in medicine that can be used to deduce the structure of organic compounds.

nuclear; → magnetic; → resonance.

nuclear magnetism
  مغناتیس ِ هسته‌ای   
meqnâtis-e haste-yi (#)

Fr.: magnétisme nucléaire   

The magnetism associated with the magnetic field generated by atomic nuclei.

nuclear; → magnetism.

<< < -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 cro cru cub cur cyc Cyn dar dat day de- dec dec dec def def deg del den dep Des det deu dex die dif dif dil dip dir dis dis dis dis dis div dom Dor dou Dra duc dus dwa dyn e-t ear ecl eco eff Ein Ein ele ele ele ele ele elv emi emp ene enr epa epo equ equ Err Eta Eul eva evo exc exc exh exo exp exp ext ext Fab fai fan fau fel fer fic fil fin fir fla fli flu foc for for for fra fre fre fro fun fuz Gal gal gal Gar gau geg gen geo geo geo ger gla gly gra gra gra gra gra Gre gro GYR Had Hal hap Har HD hea hel hel hep Her hex hig Him hol hor hos hov Hub Hun hyd hyd hyd hyp IC ide ill Ima imp imp inc inc ind ine inf inf inf ini inp ins ins int int int int Int int int int inv ion Iri irr iso iso ite jel Jou JUp Kan Kep Kil kin Kra Lag Lam Lan Lar las law lea Leg Leo lev lig lim lin lin lin lit loc loc log Lor low lum lun lun Lym Mac mag mag mag mag mag mai Mal mar mas mas mat max mea mec meg men mer met met Met mic mid Mil min Mir mix mod mod mol mon mor mov mul mur n-b nan nat nea neg Ner neu new New NGC noc nom non non nor nou nuc nuc num O-p obl obs obs oce Of? ohm omn opa Oph opt opt or orb ord Ori ort osc out ove ozo pal pan par par par par pat pec pen per per per per per Pfu pha pho pho pho phy pie pla Pla pla pla pla plu poi pol pol pol pol por pos pot pow pre pre pre pre pri pri pri pro pro pro pro Pro pro Prz pul pum Pyx qua qua qua qua R A rad rad rad rad rad rad Ram Ran rat rea rea rec rec red red ref ref reg rei rel rel rem rep res res res ret rev rhy rif Rin rob Rom rot rot rum S s Sak San sav sca Sch Sch scr sec sec SED sei sel sem seq sex Sha she sho sid sig sil sim sin siz sla Sma SNR Sof sol sol sol sol sou sou spa spe spe spe spe sph spi spo squ sta sta sta sta ste ste ste sto sto str str sub sub sub sum sup sup sup sup sur sus sym syn syz tan tea tem ten ter the the the the thi thr tid til tip tom tor tou tra tra tra tra Tri tri tru tsu tur two Typ ult umb unc uni uni unk upp urg uvb val var Veg vel ver vib vio vir vis Voi vow wan wat wav WC wea wel whi Wil wir WNh wor X-r Yer Z s zer [C > >>