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: 13048 Search : far
supplementary angle
  زاویه‌ی ِ آُپرنده   
zâviye-ye âporandé

Fr.: angle supplémentaire   

The angle that when added to a given angle makes 180°. → complementary angle.

supplementary; → angle.

support
  ۱) پادیر؛ ۲) پادیریدن   
1) pâdir; 2) pâdiridan

Fr.: 1) appui, soutien, support; 2) supporter, soutenir, être pour, appuyer   

1a) Something that serves as a foundation, prop, brace, or stay.
1b) The act or an instance of supporting.
2a) To bear or hold up (a load, mass, structure, part, etc.); serve as a foundation for.
2b) To uphold (a person, cause, policy, etc.) by aid, countenance, one's vote, etc.; back (Dictionary.com).

M.E. supporten, from M.Fr. supporter, from L. supportare "convey, carry, bring forward," from → sub- "up from under" + portare "to carry."

Pâdir "a column supporting a building; a post supporting a wall."

suppose
  انگاشتن، انگاریدن   
engâštan, engâridan (#)

Fr.: supposer   

1) To assume (something), as for the sake of argument or as part of a proposition or theory.
2) To consider (something) as a possibility suggested or an idea or plan proposed (Dictionary.com).

M.E. supposen, from O.Fr. supposer, from L. supponere "to put or place under," from → sub- "under" + ponere "to put, place," → position.

Engâštan, engâridan "to suppose," from Mid.Pers. (h)angârtan "to conside, to bear in mind, to regard as," from han, ham "together" → com- + kartan "to establish; to declare; to found;" Av. han-kârayeiti, from han-, ham- "together," + kar- "to remember; to impress on memory."

suppress
  نهاویدن   
nehâvidan

Fr.: supprimer   

1) To put down by authority or force.
2) To keep from public knowledge.
3) To restrain from a usual course or action. → suppression.

L. suppressus, p.p. of supprimere "to press down, stop, stifle," from → sub- "down, under" + premere "to press, push against," → express.

Nehâvidan, from ne-, → ni- "down, below," + hâvidan "to press," → express.

suppression
  نهاوش   
nehâveš

Fr.: suppression   

The act of suppressing; the state of being suppressed. → Compton suppression, → zero suppression.

suppress; → -tion.

supra-
  فراز، بالا، ابر-   
farâz, bâlâ, abar-

Fr.: supra-   

A prefix denoting "over, above, beyond, greater than."

From L. supra "above, over, before, beyond," → super-.

Farâz "above, up, upon," → height; bâlâ "above, up, high," → height; abar-, → super-.

supra-Eddington layer
  لایه‌ی ِ ابر-ادینگتونی   
lâye-ye abar-Eddingtoni

Fr.: couche super-eddingtonienne   

In some stellar models, particularly for evolved → massive stars, such as → red supergiants, → Luminous Blue Variables, and → Wolf-Rayet stars, an outermost layer of the stellar envelope where the luminosity might exceed the → Eddington limit. This is due to the → opacity peak produced by the variation in the ionization level of hydrogen in the outer → convective envelope, beneath the surface, of very luminous stars. The opacity peak generates supra-Eddington layers and density inversion. The high opacity decreases the Eddington luminosity in these layers, possibly to fainter levels than the actual stellar luminosity. As a result, the → radiative acceleration exceeds the → gravitational acceleration leading to → mass loss enhancement (see, e.g., A. Maeder, Physics, Formation and Evolution of Rotating Stars, Springer, 2009).

supra-; → Eddington limit; → layer.

supra-horizontal branch star
  ستاره‌ی ِ فراز ِ شاخه‌ی ِ افقی   
setâre-ye farâz-e šâxe-ye ofoqi

Fr.: étoile au-dessus de la branche horizontale   

A member of a rare class of objects found in → globular clusters to lie about one magnitude above and to the blue part of the → horizontal branch. These stars are identified as post → EHB stars on their way from to the → asymptotic giant branch.

supra-; → horizontal; → branch; → star.

supreme
  ابرتم   
abartom

Fr.: suprême   

1) Highest in rank or authority.
2) Of the highest quality, degree, character, importance, etc.

M.E., from M.Fr. suprême, and directly from L. supremus "highest," superlative of superus "situated above," from super "above," → super-.

Abartom "highest," from abar "high, upon," → super-, + -tom superlative suffix, → extreme.

sur-
  بر-، ابر-، رو-   
bar-, abar-, ru-

Fr.: sur-   

A prefix meaning "over, above, beyond, in addition," occurring mainly in loanwords from Fr.

From O.Fr. sour-, sor-, sur-, from L. → super-.

Bar-, abar-, → super-; ru-, ruy- "face, surface; aspect; appearance," variant rox (Mid.Pers. rôy, rôdh "face;" Av. raoδa- "growth," in plural form "appearance," from raod- "to grow, sprout, shoot;" cf. Skt. róha- "rising, height").

sure
  تنز   
tenz

Fr.: sûr   

Free from doubt as to the reliability, character, action, etc., of something (Dictionary.com).

M.E. sur(e), from M.Fr. sur, O.Fr. seur "safe, secure; trustworthy," from L. securus "free from care, untroubled, safe," from *se cura, from se "free from" + cura "care."

Tenz, from (Fine-e Bandar Abbâs) tenz "firm, fixed, solid," variant tereng; (Tabari) tereng, təreq "firm, fixed;" (Baxtiyâri) teng "firm;" cf. Baluci tranj-, dranjit, tranjit/drannj-, draht, dratk "to hang up;" ultimately from Proto-Ir. *dra(n)j- "to fix, fasten, hold;" Av. drənj- (draž-) "to fix, fasten, hold;" Parthian (*abi-) 'bdrynj- "to be sure, secure; make certain;" Khotanese drys- "to hold;" cognate with Gk. drassomai "I hold (with the hand), take;" O.Irish dringid "he climbs;" M.Welsh dringo "to climb;" PIE *dregh- "to hold, fasten."

surely
  تنزانه   
tenzâné

Fr.: sûrement   

Without doub; certainly; to be sure; for sure.

sure; → -ly.

surety
  اتیماری   
atimâri

Fr.: caution, garantie, sureté   

1) Security against loss or damage or for the fulfillment of an obligation, the payment of a debt, etc.; a pledge, guaranty, or bond.
2) The state or quality of being sure (Dictionary.com).

M.E. surte, from M.Fr., from O.Fr. seurte "a promise, pledge, guarantee; assurance, confidence;" from L. securitas "freedom from care or danger, safety," from securus, → secure.

surface
  رویه   
ruyé (#)

Fr.: surface   

1) The outer face, outside, or exterior boundary of a thing; outermost or uppermost layer or area.
2) Math.: An infinite aggregate of points constituting space of two dimensions; part or all of the boundary of a solid.

sur-; → face.

surface brightness
  درخشندگی ِ رویه، ~ رویه‌ای   
deraxandegi-ye ruyé, ~ ruye-yi

Fr.: brillance de surface   

The brightness of an extended object, such as a planet, nebula, galaxy, or the sky background, expressed as magnitudes per unit area (usually square arc second). Surface brightness is calculated by dividing the object's magnitude by its size (→ isophotal radius).

surface; → brightness.

surface current
  جریان ِ رویه‌ای   
jarayân-e ruye-yi

Fr.: courant de surface   

A current whose core of maximum velocity is near the surface.

surface; → current.

surface density
  چگالی ِ رویه‌ای   
cagâli-ye ruye-yi

Fr.: densité de surface   

The amount of a quantity distributed over a surface area divided by the area, such as a surface-charge density.

surface; → density.

surface gravity
  گرانی ِ رویه، ~ رویه‌ای   
gerâni-ye ruyé, ~ ruye-yi

Fr.: gravité de surface   

1) The rate at which a small object in free fall near the surface of a body is accelerated by the gravitational force of the body: g = GM / R2, where G is the gravitational constant, and M and R are the mass and radius of the object. The surface gravity of Earth is equal to 980 cm s-2.
2) → black hole surface gravity.

surface; → gravity.

surface of last scattering
  رویه‌ی ِ واپسین پراکنش   
ruye-ye vâpasin parâkaneš

Fr.: surface de dernière diffusion   

Same as → last scattering surface.

surface; → last; → scattering.

surface temperature
  دما‌ی ِ رویه، ~ رویه‌ای   
damâ-ye ruyé, ~ ruye-yi

Fr.: température de surface   

1) For a star, same as → effective temperature.
2) Meteo.: The air temperature at or near the earth's surface.

surface; → temperature.

<< < -es -iv -ti 21 a p abe abs abs aca acc acc acr act ada adh Adr aer AGB air Alf Alg all alp alt AM amo ana And ang ani ano Ant Ant apa apo app app Ara Arc ari Arr ash ass ast ast asy atm ato att aut ave axi Bab bal Bal bar bar bea Bek Bes bia Big bin bin bip biv bla bli blu Boh Bol Bos bou bra bri bro buo cal cal can cap car Car cat cat CCD Cen cen CH cha cha che Che chr cir cir cit 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 con Cop Cor cor cor cos cos cou cou Cow cre cri cro cry cur cya Cyg dan dar dat de- deb dec dec ded def deg del dem den dep des det dev dia dif dif dih dio Dir dis dis dis dis dis dis DO don dou dow dro dur dwa dyn Dys ear ebb ecl edg egg Ein Ela ele ele ele ele ell eme emp enc eng ent epi equ equ equ esc eth Eur Eve exa exc exe exi exp exp ext ext ext fac fal far fed Fer fer fie fin fir fis fla flo flu fol for for fou fra fre Fre fro fut G-t gal gal gam gas Gau Gem gen geo geo geo gia Gli Gol gra gra gra gra gre gri gui H I Hag hal har hat He- hea hel Hel her Hes hie hig his hom hor hot Hub Hug hur hyd hyd hyg hyp ice ide ima Ima imp imp inc inc ind ine inf inf inf ing inn ins ins int int int int int int int int inv Io ion iro isl iso iso Jac jet jud jur Kel Kep kil Klo Kui Lag lam Lap Lar lat law lea len lep Lib lig lim lin lin Lio lit loc LOF lon Lor low lum lun Lup Lyo mac mag mag mag mag mag mai man Mar mas mas mat Max mea mec Meg Mer Mer met met Met mic Mid Mil min Mir mit mod mod mol mon Mor mou mul mul mys nan Nat nau nec neo neu nev New NGC no nom non non nor not nuc nuc num nut obj obs obs occ ocu oft ome Oor ope opp opt opt orb ord ori ort osc out ove oxi pai pan par par par par pas pea pen per per per per Per per pha phi pho pho pho phy pio Pla pla pla pla Pla plu Poi pol pol pol poo pos pos pot pra pre pre pre pre pri pri pro pro pro pro pro Pro pro pse pul pur qua qua qua qua que rac rad rad rad rad rad rad ran rar ray rea rea rec rec red red ref ref reg rel rel rel ren res res res res ret rev Ric rig rin roc roo rot rot Rus Sac sal sat sca sca Sch sci Scu sec sec Sed sel Sel sen ser Sex Sha she sho sid sig sil sim sin siz sla Sma sno sof sol sol sol sol sou sou spa spa spe spe spe sph spi spi spr 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 tek tem ter tes the the the the Tho thr tid tim Tis Too Tor tra tra Tra tra tra tri tri tru Tul tur two Typ ult un- und uni uni unk upp Urc utt val var vec vel ver vib vio vir vis voi vor wan wat wav wax wea Wei whi Wil win WN9 wor X-r yel you zer zod > >>