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: 13048 Search : far
frozen
  یخ‌بسته، رچیده   
yax basté, rocidé

Fr.: gelé   

1) Turned into or covered with ice. → frozen water.
2) Attached or → fixed so as to be immovable. → frozen magnetic field line.

Past participle of → freeze.

frozen magnetic field line
  خط ِ میدان ِ مغناتیسی ِ یخ‌بسته، ~ ~ ~ رچیده   
xatt-e meydân-e meqnâtisi-ye yax basté, ~ ~ ~ rocidé

Fr.: ligne de champ magnétique gelée   

A → magnetic field line in a → fluid when the motion of the fluid carries the magnetic field along with it.

Frozen, p.p. of → freeze; → magnetic; → line.

frozen water
  آب ِ یخ‌بسته، ~ رچیده   
âb-e yax basté, âb-e rocidé

Fr.: eau gelée   

Turned into or covered with → ice. See also: → water ice.

Past participle of → freeze.

FU Orionis object
  بر‌آخت ِ FU شکارگر   
barâxt-e FU Šekârgar

Fr.: objet FU Orionis   

A member of a class of → pre-main sequence stars that experience dramatic changes in magnitude and → spectral type. During an outburst the luminosity of such an object can increase by several orders of magnitude on short time-scales (few months to few years). The phenomenon is explained by abrupt mass transfer from an → accretion disk to a young, low mass → T Tauri star (accretion rates 10-4 to 10-3 solar masses per year). → EX Lupi; → Z CMa.

F and U, alphabet letters; Orionis, → Orion; → object.

full
  پر   
por (#)

Fr.: plein   

Completely filled; containing all that can be held; complete; entire; maximum.

O.E. full "completely, full," from P.Gmc. *fullaz (cf. O.Fris. ful, O.N. fullr, O.H.G. fol, Ger. voll), akin to Pers. por, as below.

Por "full;" Mid.Pers. purr "full;" O.Pers. paru- "much, many;" Av. parav-, pauru-, pouru-, from par- "to fill;" PIE base *pelu- "full," from *pel- "to be full;" cf. Skt. puru- "much, abundant;" Gk. polus "many," plethos "great number, multitude;" O.E. full.

full micro Moon
  ریز پرمانگ، ~ پرماه   
riz pormâng, ~ pormâh

Fr.: pleine lune d'apogée   

Same as → apogee full Moon.

full; → micro-; → Moon.

full moon
  پرمانگ، پرماه   
pormâng, pormâh (#)

Fr.: pleine lune   

1) The moon at → opposition, when it appears as a round disk to an observer on the Earth because the illuminated side is toward him.
2) The phase when the → age of the moon, measured from → new moon, is 14.5 days.

full; → moon.

Pormâh, from Mid.Pers. purrmâh, from Av. pərənô.manha- "full moon" (cf. Skt. pūrná-mās-); → full; → moon.

full super Moon
  ابر پرمانگ، ابر پرماه   
abar pormâng, abar pormâh

Fr.: pleine lune de périgée   

Same as → perigee full Moon.

full; → super-; → Moon.

full-width at half-maximum (FWHM)
  پهنای ِ نیم‌بیشینه   
pahnâ-ye nim-bišiné

Fr.: largeur à mi-hauteur   

The full width of a → profile (spectral line or a cross-cut in an image component) at half-maximum intensity.

full; → width; → half; → maximum.

Pahnâ, → width; nim, → half; bišiné, → maximum.

function
  کریا   
karyâ

Fr.: fonction   

A mathematical rule between two sets which assigns to each element of the first exactly one element of the second, as the expression y = axb.

From M.Fr. fonction, from O.Fr. function, from L. functio (gen. functionis) "performance, execution," from functus, p.p. of fungor "to perform, execute."

Karyâ, from Av. kairya- "function;" cf. Mod.Pers. Laki karyâ "done," Awromâni kiriyây, kiria "to be done," from kar- "to do" (Mod.Pers. kar-, kardan "to do, to make;" Mid.Pers. kardan; O.Pers./Av. kar- "to do, make, build;" Av. kərənaoiti "he makes;" cf. Skt. kr- "to do, to make," krnoti "he makes, he does," karoti "he makes, he does," karma "act, deed;" PIE base kwer- "to do, to make") + -ya suffix of verbal adjectives and nouns (e.g. išya- "desirable," jivya- "living, fresh," haiθya- "true," maidya- "middle," dadya- "grain"); cf. Skt. kāryá- "work, duty, performance."

functional
  ۱) کریایی؛ ۲) کریال   
1) karyâyi; 2) karyâl

Fr.: 1) fonctionnel; 2) fonctionnelle   

1) Math.: Of, relating to, or affecting a function.
2) A → function that associates a → real number or → complex number to a function or a → set of functions. A functional can be considered as a function of a set of several infinite and continuous → variables.

function; → -al.

fundamental
  بنیادین   
bonyâdin (#)

Fr.: fondamental   

1) Being an original or primary source.
2) A basic principle, rule, law, or the like, that serves as the groundwork of a system.

L.L. fundamentalis "of the foundation," from L. fundamentum "foundation," from fundare "to found."

Bonyâdin, adj. of bonyâd "foundation, basis," from *bondâd (Mid.Pers. bune dâtak "foundation, basis"), from bon "basis; root; foundation; bottom" (Mid.Pers. bun "root; foundation; beginning," Av. būna- "base, depth," cf. Skt. bundha-, budhná- "base, bottom," Pali bunda- "root of tree") + dâd "given," from dâdan "to give" (Mid.Pers. dâdan "to give," O.Pers./Av. dā- "to give, grant, yield," dadāiti "he gives;" Skt. dadáti "he gives," Gk. didomi "I give," tithenai "to put, set, place;" L. dare "to give, offer;" Rus. delat "to do;" O.H.G. tuon, Ger. tun, O.E. don "to do").

fundamental constant
  پایای ِ بنیادین   
pâyâ-ye bonyâdin (#)

Fr.: constante fondamentale   

A physical constant that cannot be expressed in terms of other constants of nature, such as the charge of the electron.

fundamental; → constant.

fundamental force
  نیروی‌ ِ بنیادین   
niru-ye bonyâdin (#)

Fr.: force fondamentale   

Same as the → fundamental interaction.

fundamental; → force.

fundamental frequency
  بسامد ِ بنیادین   
basâmad-e bonyâdin (#)

Fr.: fréquence fondamentale   

The lowest frequency in a complex wave.

fundamental; → frequency.

fundamental interaction
  اندرژیرش ِ بنیادین   
andaržireš-e bonyâdin

Fr.: interaction fondamentale   

Any of the four interactions in nature between bodies of matter and that are mediated by one or more particles. Also called the → fundamental force. In order of decreasing strength, the four fundamental interactions are the → strong interaction, the → electromagnetic interaction, the → weak interaction, and the → gravitational interaction.

fundamental; → interaction.

fundamental particle
  ذره‌ی ِ بنیادین   
zarre-ye bonyâdin (#)

Fr.: particule élémentaire   

Same as → elementary particle.

fundamental; → particle.

fundamental star
  ستاره‌ی ِ بنیادین   
setâré-ye bonyâdin

Fr.: étoile fondamentale   

A relatively bright star for which coordinates and proper motion have been determined to a very high degree of accuracy.

fundamental; → star.

fuse
  ۱) ایویدن؛ ۲) گداختن   
1) ividan; 2) godâxtan

Fr.: fusionner; fondre, mettre en fusion   

1) To unite or blend into a whole, as if by melting together. Related terms: → coalesce; → merge; → unify.
2) To combine or blend by melting together; melt (Dictionary.com).

From L. fusus "poured, melt, cast," p.p. of fundere "to pour, melt."

1) Ividan, literally "to make (combine) into one entity," from iv, → one, + -idan infinitive suffix.
2) Godâxtan "to melt," from Mid.Pers. vitâxtan, vitâcitan "to melt," from Av. vi-taxti- "flowing away, melting," from vi- "apart, away from, out" (O.Pers. viy- "apart, away;" cf. Skt. vi- "apart, asunder, away, out;" L. vitare "to avoid, turn aside") + tak- "to run, to flow," taciāp- "flowing water," tacinti (3pl.pers.act.) "to flow," tacar- "course," tacan "current, streaming;" Mod.Pers. tâz-, tâxtan "to run; to hasten; to assault," tâzi "swift (greyhound)," tak "running, rush;" Mid.Pers. tâz-, tâxtan "to flow, to cause to walk," tc- "to flow, to walk," tag "running, attack," tâzig "swift, fast;" Khotanese ttajs- "to flow, to walk;" cf. Skt. tak- "to rush, to hurry," takti "runs;" O.Ir. tech- "to flow;" Lith. teketi "to walk, to flow;" O.C.S. tešti "to walk, to hurry;" Tokharian B cake "river;" PIE base *tekw- "to run; to flow;" → flow.

fusion
  ۱، ۲، ۳) ایوش؛ ۳) گداز   
1, 2, 3) iveš; 3) godâz (#)

Fr.: fusion   

1) The act or process of fusing; the state of being → fused; that which is fused; the result of fusing.
2) A → nuclear reaction between atomic nuclei (→ nucleus) as a result of which a heavier nucleus is formed and a large quantity of → nuclear energy is released. → proton-proton chain, → CNO cycle, → nucleosynthesis.
3) Change of the → state of a → substance from → solid to → liquid which occurs at a definite → temperature at a given applied → pressure. Same as melting.

From M.Fr. fusion, from L. fusionem, from fusus, p.p. of fundere "to pour, melt."

Verbal noun form of → fuse.

<< < -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 > >>