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
ingress
  درونگام   
darungâm

Fr.: immersion   

Same as → immersion.

From → in- + gress, → egress.

inherit
  ریگن بردن، دریگیدن   
rigan bordan, darigidan

Fr.: hériter   

To take or receive (property, a right, a title, etc.) by succession or will, as an → heir (Dictionary.com).

heritage.

inheritable
  ریگن‌بردنی، دریگیدنی   
riganbordani, darigidani

Fr.: dont on peut hériter, qui peut hériter   

1) Capable of being inherited.
2) Capable of inheriting; qualified to inherit (Dictionary.com).

inherit; → -able.

inheritance
  ریگن‌برد، ریگنبرد، دریگش   
riganbord, darigeš

Fr.: hériter   

1) Something that is or may be inherited; property passing at the owner's death to the heir or those entitled to succeed; legacy; something, as a quality, characteristic, or other immaterial possession, received from progenitors or predecessors as if by succession.
2) The genetic characters transmitted from parent to offspring, taken collectively.
3) The act or fact of inheriting by succession, as if by succession, or genetically (Dictionary.com).

Verbal noun of → inherit.

inheritor
  ریگن‌بر، ریگنبر   
riganbar

Fr.: héritier   

A person who → inherits; → heir.

inherit; → -or.

inhomogeneity
  ناهمگنی   
nâhamgeni (#)

Fr.: inhomogénéité   

The condition or an instance of not being homogeneous.

in- "not" + → homogeneity.

inhomogeneous
  ناهمگن   
nâhamgen (#)

Fr.: inhomogène   

Lack of homogeneity; something that is not → homogeneous.

in- "not" + → homogeneous.

initial
  آغازین   
âqâzin (#)

Fr.: initial   

Of, pertaining to, or occurring at the beginning.

Initial, from L. initialis, from initium "a beginning, an entrance," from p.p. stem of inire "to go into, begin," from → in- + ire "to go," → ion.

Âqâzin "pertaing to the beginning," from âqâz "beginning," from Proto-Iranian *āgāza-, from prefix ā- + *gāz- "to take, receive," cf. Sogdian āγāz "beginning, start," pcγz "reception, taking."

initial conditions
  بوتارهای ِ آغازین   
butârhâ-ye âqâzin

Fr.: conditions initiales   

1) Conditions at an initial time t = t0 from which a physical system or a given set of mathematical equations evolves.
2) Meteo.: A prescription of the state of a → dynamical system at a specified time; for all subsequent times, the → equation of motion and → boundary conditions determine the state of the system.

initial; → condition.

initial mass
  جرم ِ آغازین   
jerm-e âqâzin (#)

Fr.: masse initiale   

The mass of a star at its arrival on the → main sequence.

initial; → mass.

initial mass function (IMF)
  کریا‌ی ِ آغازین ِ جرم   
karyâ-ye âqâzin-e jerm

Fr.: fonction initiale de masse   

A mathematical expression describing the relative number of stars found in different ranges of mass for a cluster of stars at the time of its formation. It is defined as φ(log M) = dN / dlog M ∝ M, where M is the mass of a star and N is the number of stars in a logarithmic mass interval. The value of the slope found by Salpeter (1955) for → low-mass and → intermediate-mass stars in the → solar neighborhood is Γ = 1.35. The IMF can be expressed also in linear mass units: χ(M) = dN / DM ∝ M. Note that χ(M) = (1 / M lm 10) φ(log M), and α = Γ + 1. In this formalism the Salpeter slope is α = 2.35. There is a third way for representing the IMF, in which the exponent is x = -α. The IMF is not a single power law over all masses, from → brown dwarfs to → very massive stars (Kroupa, 2002, Science 295, 82). Different slopes have been found for different mass segments, as follows: α = 1.3 for 0.08 ≤ Msolar < 0.5; α = 2.3 for 0.5 ≤ Msolar < 1; α = 2.3 for 1 ≤ Msolar. The IMF at low masses can be fitted by a → lognormal distribution (See Bastian et al., 2010, ARAA 48, 339 and references therein). See also → canonical IMF.

initial; → mass; → function.

initial phase angle
  زاویه‌ی ِ فاز ِ آغازین   
zâviye-ye fâz-e âqâzin

Fr.: angle de phase initial   

The value of the phase corresponding to the origin of time. Same as the → epoch angle.

initial; → phase; → angle.

initial singularity
  تکینی ِ آغازین   
takini-ye âqâzin (#)

Fr.: singularité initiale   

An instant of infinite density, infinite pressure, and infinite temperature where the equations of general relativity break down, if the standard Big Bang theory is extrapolated all the way back to time zero. → singularity.

initial; → singularity.

initiative
  بنگام   
bongâm

Fr.: initiative   

1) The first step or action of a matter; commencing move.
2) An introductory act or step; leading action.

From Fr. initiative, from L. initiatus, p.p. of initiare "to begin," from initium "a beginning," → initial.

Bongâm, from bon "basis; root; foundation; bottom," → fundamental, + gâm "step, pace," → egress.

inject
  در‌شاندن   
daršândan

Fr.: injecter   

1) General: To force into a passage, cavity, or tissue.
2) Math.: Verbal form related to → injection.

From L. injectus, p.p. of injicere "to throw in or on," from → in- "in" + -icere, combining form of jacere "to throw."

Daršândan, from darešândan, from dar-, → in, + ešândan, → eject.

injection
  درشانش   
daršâneš

Fr.: injection   

1) General: The act of injecting. Something that is injected.
2) Physics: The process of introducing electrons or holes into a semiconductor so that their total number exceeds the number present at thermal equilibrium. → hole injection.
3) Math.: A one-to-one → mapping. In other words, a mapping from a → set A onto a set B such that for every element in B there is at the most an element in A.

Verbal noun of → inject.

injective
  درشانی   
daršâni

Fr.: injectif   

Of or pertaining to a → injection.

Adj. related to → injection.

inlet
  شاخابه   
šâxâbé (#)

Fr.: grau, crique, bras de mer, bras de rivière   

A small arm of the sea, a lake, or a river.

From → in- + let "to allow," M.E. leten, O.E. lætan; cognate with Du. laten, Ger. lassen, akin to Gk. ledein "to be weary", L. lassus "tired."

Šâxâbé, literally "branch of water," from šâx, → branch, + âb "sea, river, → water" + noun suffix .

inner
  درونی   
daruni (#)

Fr.: interne   

Situated within or farther within; interior.

From O.E. inra, comparative of inne (adv.) "inside;" → in-.

Daruni, adj. of darun "in, into; within" (Mid.Pers. andarôn "inside," from andar, → inter-, + rôn "side, direction;" Av. ravan- "(course of a) river").

inner core
  مغزه‌ی ِ درونی   
maqze-ye daruni

Fr.: noyau interne   

The central part of the → Earth's core, composed of solidified → iron and → nickel, and extending from a depth of about 5100 km to the center of the Earth, at 6360 km. Its radius is about 1/3 that of the whole core and is effectively decoupled from the → mantle due to the molten nature of the surrounding → outer core. The radius of the inner core is defined by a small increase in → compressional wave velocity at a radius of about 1200 km. Its density is about 12 g/cm3. The → temperature of the inner core has been estimated at 5000-7000 °C.

inner; → core.

<< < -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 > >>