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

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

   Homepage   
   


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

<< < -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 > >>

Number of Results: 13048 Search : far
Urca process
  فراروند ِ اورکا   
farâravand-e Urkâ

Fr.: processus Urca   

A cycle of nuclear reactions, primarily among the iron group of elements, accompanied by a high rate of neutrino formation. Neutrinos carry away energy quickly leading to the cooling of the stellar core and a dramatic drop in the pressure. Due to this process in pre-supernova stars, the core becomes unable to support the weight of the overlying layers. These layers collapse onto the core and subsequently rebound and escape in the supernova explosion.

Named for the de Urca Casino in Rio de Janeiro, by George Gamow and Mario Schönberg, who first studied this process. Gamow is reported to have pointed to the similarity between the disappearance of money in the crowded gambling rooms of the Casino and the disappearance of electron energy into invisible neutrinos; → process.

urge
  ۱) گرژیدن؛ ۲) گرژ   
1) garžidan; 2) garž

Fr.: 1) pousser, exhorter, presser; 2) désir ardent, forte envie   

1a) To push or force along; impel with force or vigor.
1b) To drive with incitement to speed or effort.
1c) To impel, constrain, or move to some action.
2) An act of urging; impelling action, influence, or force; impulse (Dictionary.com).

From L. urgere "to press hard, push forward, drive, compel,," from PIE root *ureg- "to push, shove, drive;" cf. Lith. verziu "tie, fasten, squeeze," vargas "need, distress;" O.C.S. vragu "enemy;" Gothic wrikan "to persecute;" O.E. wrecan "avenge; drive, hunt, pursue;" E. wreak "to inflict, to cause;" Av. uruuaj- "to walk," see below.

Garžidan, from Proto-Ir. *uraj- "to go forth" (Cheung 2007; on the model of *urad- "to soften," Baluchi grast "to cook in oil or water"); cf. Av. uruuaj- "to go forth, walk;" cf. Kurd. guš, gušin (?) "to press, squeeze, shake;" Skt. vraj- "to stride, walk, proceed;" cognate with L. urgere, as above (Cheung 2007).

urgency
  گرژانش، گرژانی   
garžâneš, garžâni

Fr.: urgence   

The quality or state of being urgent; imperativeness; insistence.

Noun from → urgent.

urgent
  گرژان   
garžân

Fr.: urgent   

Compelling or requiring immediate action or attention; imperative; pressing (Dictionary.com).

Adj. from → urge.

Ursa Major
  خرس ِ بزرگ   
Xers-e Bozorg (#)

Fr.: Grande Ourse   

The Great Bear. An extensive and prominent constellation in the region of the north celestial pole, at approximately 10h 40m right ascension, +56° declination. The seven brightest stars of Ursa Major are known as the → Big Dipper. The region contains the planetary → Owl Nebula and the spiral galaxies M81 and M82. Abbreviation: UMa, Genitive: Ursae Majoris.

Ursa,from L. ursus "bear," cognate with Pers. xers, as below; Major irregular comparative adj. of magnus "large, great," cognate with Pers. meh "great, large" (Mid.Pers. meh, mas; Av. maz-, masan-, mazant- "great, important," mazan- "greatness, majesty," mazišta- "greatest;" cf. Skt. mah-, mahant-; Gk. megas; PIE *meg- "great").

In Gk. mythology, Zeus falls in love with the nymph Callisto, and they have a son named Arcus. To hide Callisto from the wrath of his wife, Hera, Zeus changed her into a bear. Later on, when Arcus saw the bear Callisto, drew his bow and prepared to shoot her. To prevent Arcus from killing his mother, Zeus placed them together in the sky as the Big Bear and the Little Bear.

Xers "bear," dialectal Tabari ; Mid.Pers. xirs, Av. arša- "bear;" cf. Skt. rksa- "bear;" Gk. arktos; L. ursus; PIE base *rtko- "bear;" bozorg "large, magnificient, great;" Mid.Pers. vazurg "great, big, high, lofty;" O.Pers. vazarka- "great;" Av. vazra- "club, mace" (Mod.Pers. gorz "mace"); cf. Skt. vájra- "(Indra's) thunderbolt," vaja- "strength, speed;" L. vigere "be lively, thrive," velox "fast, lively," vegere "to enliven," vigil "watchful, awake;" P.Gmc. *waken (Du. waken; O.H.G. wahhen; Ger. wachen "to be awake;" E. wake); PIE base *weg- "to be strong, be lively."

Ursa Major star cluster
  خوشه‌ی ِ خرس ِ بزرگ   
xuše-ye Xers-e Bozorg (#)

Fr.: amas de la Grande Ourse   

A moving star cluster containing over 100 stars that are scattered over an area of sky more than 1,000 minutes of arc in diameter. The five brightest stars of the → Big Dipper as well as → Sirius belong to this → dynamical stream.

Ursa Major; → star; → cluster.

Ursa Minor
  خرس ِ کوچک   
Xers-e Kucak (#)

Fr.: Petite Ourse   

The Lesser Bear. A constellation situated in the northern hemisphere, at about 15h right ascension, +79° declination. Its two brightest stars, both of 2nd magnitude, are → Polaris, the present pole star, and → Kochab. Abbreviation: UMi, Genitive: Ursae Minoris.

Ursa,from L. ursus "bear," cognate with Pers. xers, as below; Minor "smaller, less," from minus related to L. minuere "make small;" cf. Gk. meion "less," minuthein "to lessen;" Skt. miyate "diminishes, declines;" O.E. minsian "to diminish;" PIE base *mei- "small."

Xers "bear," dialectal Tabari ; Mid.Pers. xirs, Av. arša- "bear;" cf. Skt. rksa- "bear;" Gk. arktos; L. ursus; PIE base *rtko- "bear;" kucak "small;" Mid.Pers. kucak "small," related to kutâh "short, small, little," kudak "child, infant," kutulé, → dwarf; Mid.Pers. kôtâh "low," kôtak "small, young; baby;" Av. kutaka- "little, small."

Ursa Minor system
  راژمان ِ خرس ِ کوچک   
râžmân-e Xers-e Kucak

Fr.: galaxie naine d'Ursa Minor   

A dwarf spheroidal galaxy of faint luminosity that is a member of the Local Group.

Ursa Minor; → system.

Ursids
  خرسیان   
Xersiyân

Fr.: Ursides   

An annual → meteor shower whose → radiant lies in the constellation → Ursa Minor and is active between December 17 and December 24. The shower usually peaks around December 23.

Ursa Minor; → -ids.

Urvara
  اوروارا   
Urvara

Fr.: Urvara   

An → impact cratrer on → Ceres which is the third largest crater on this → dwarf planet. Urvara is located south of → Occator and is about 160 km wide and 6 km deep. It has a prominent central peak that is about 3 km high.

Named for the ancient Indo-Iranian personification of fertility, Av. urvarā- "plant," often defied, Skt. urvárā- "land, soil, fertile field."

user
  کاربر   
kârbar (#)

Fr.: utilisateur   

A person who uses or exploits something, such as a computer.

From use; M.E. usen from O.Fr. user "to use, employ," from V.L. *usare "to use," from L. uti "to use."

Kârbar "user," from bé kâr bordan "to use."

users committee
  کمیته‌ی ِ کاربران   
komite-ye kârbarân

Fr.: comité des utilisateurs   

A committee whose members represent the astronomers who use the facilities of an observatory and which is intended to improve the interaction between the observatory and the users.

user; committee, M.E., from O.Fr. commettre "to commit," from L. committere "to bring together," from → com- + mittere "to put, send."

Komité, loan from Fr.; kârbarân plural of kârbaruser.

utilitarian
  هوده‌مند   
hudemand

Fr.: utilitaire   

1) Of, relating to, or in the interests of utility.
2) Of, characterized by, or adhering to → utilitarianism.

Coined by Jeremy Bentham (1748-1832) from → utility + -arian.

utilitarianism
  هوده‌مندی‌باوری، هوده‌مندی‌گرایی   
hudemandibâvari, hudemandigerâyi

Fr.: utilitarisme   

Philosophy: A doctrine according to which the virtue of a thing or an action is determined by its utility. The goal of utilitarian ethics is to promote the greatest happiness for the greatest number of people. The founders of this philosophical school were Jeremy Bentham (1748-1832) and James Mill (1773-1836).

utilitarian; → -ism.

utility
  ۱) هوده‌مندی؛ ۲) هوده‌مند   
1) hudemandi; 2) hudemand

Fr.: 1) utilité; 2) utilitaire   

1) The state or quality of being useful; usefulness.
2) Having, or made for, useful practical purposes. → utility software.

M.E. utilite, from O.Fr. utilite "usefulness," earlier utilitet, from L. utilitatem "usefulness, profit," from utilis "usable," from uti "to use."

Hudemandi, from hudemand "utile," from hudé "use" (as in bihudé "useless, vain, absurd"), from Mid.Pers. hudâg "good, useful, beneficent;" Av. hūdā- "doing good, producing wealth," from hū-, hu-, → eu-, + Av./O.pers. dā- "to give, grant, put," dadāiti "he gives;" Mid.Pers./Mod.Pers. dâdan "to give, put" (cf. Skt. dadáti "he gives;" Gk. tithenai "to place, put, set," didomi "I give;" L. dare "to give, offer;" Rus. delat' "to do;" O.H.G. tuon, Ger. tun, O.E. don "to do;" PIE base *dhe- "to put, to do") + -mand(i)

utility software
  نرم‌افزار ِ هوده‌مند   
narm-afzâr-e hudemand

Fr.: logiciel utilitaire   

A part of the system software designed to support the operation of application software and is used to manage the computer files. Examples of utility software are disk diagnosis program, backup software, password generation software, and virus protection software. Also called utilities.

utility; → software.

utilization
  هودش   
hudeš

Fr.: utilisation   

The act or process of utilizing.

Verbal noun of → utilize.

utilize
  هودیدن   
hudidan

Fr.: utiliser   

To make practical or worthwhile use of.

From Fr. utiliser, from It. utilizzare, from utile "usable," from L. utilis "usable," from uti "to use."

Hudidan, from hudé, hudag "use," → utility, + -idan.

Utopia Planitia
  دشت ِ ناکجا، ~ ناکجا‌آباد   
dašt-e nâkojâ, ~ nâkojâ âbâd

Fr.: Utopia Planitia   

A → plain in the northern hemisphere of Mars that was chosen as the landing site of the Viking II space probe on September 3, 1976.

Mod.L. Utopia, literally "nowhere," coined by Thomas More (1516), from Gk. ou "not" + topos "place;" planitia, from planus, → plain.

Dašt, → plain; nâkojâ "nowhere," from nâ-, → un-, + kojâ "where?; a place;" Mid.Pers. kugiyâg, from "where; that; than" + giyâk "place" (O.Pers. ā-vahana- "place, village;" Av. vah- "to dwell, stay," vanhaiti "he dwells, stays;" Skt. vásati "he dwells;" Gk. aesa (nukta) "to pass (the night);" Ossetic wat "room; bed; place;" Tokharian B wäs- "to stay, wait;" PIE base ues- "to stay, live, spend the night"); nâkojâ âbâd literally "city of nowhere, habitation of nowhere," from nâkojâ, as explained, + âbâd "city; habitation; cultivated" (Mid.Pers. âpât, âpâtân "cultivated, inhabitated;" Proto-Iranian *ā-pāta- "protected," from prefix ā + pā- "to protect, guard" (Mod.Pers. pâyidan), → observe.

utter
  واپیدن   
vâpidan

Fr.: prononcer, proférer, pousser   

1) To give audible expression to; speak or pronounce.
2) Phonetics: To produce (speech sounds, speech-like sounds, syllables, words, etc.) audibly, with or without reference to formal language (Dictionary).

M.E. outren from M.Du. uteren or M.L.G. utern "to turn out, show, speak," from uter "outer," comparative adj. from ut, → out.

Vâpidan, from Proto-Ir. *uab-/*uaf- "to utter (sing, speak), to call;" cf. Av. uf- "to sing;" Sogd. w'β, w'b "to say, speak;" Baluci gwâpt/gwâp- "to summon, call together;" Mod.Pers. gap, gab "word, chit-chat," zand-bâf "nightingale," buf "owl."

<< < -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 > >>