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

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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<< < -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 Asi ass ast ast asy atm ato att aut ave axi Bab bal ban bar bar bea Bel Bes bia Big bin bin bip Bla bla bli blu Boh Bon bos Bou bra bri bro bur cal cal can Cap car Car cat Cau cea Cen cen cha Cha cha che chi chr cir cir civ cla clo clo CMB 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 cop Cor CoR cor cos cos Cou cou CP- cre cri cro cub cur cya Cyg dan dar dau de- deb dec dec dee def deg del den den dep des deu dew dia dif dif dih dip dir dis dis dis dis dis diu doc dop dou DQ dry dus dwa dyn Dys Ear ecc eco edi EHB Ein ela ele ele ele ele ell eme emp end Eng ent epi equ equ era ESP eth Eur evi exa exc exe exi exp exp ext ext eye fac fal Far fed Fer fer fie fin fir fit fla flo flu fol for for Fou fra fre Fre fro fuz gai Gal Gal gam gas Gau gen gen geo geo geo gia glo gol gra gra gra gra gre gri gui H I hai Ham har Hau hea hec hel hel her HES hie hig his hom hor hot Hub Hul Huy hyd hyd hyl hyp ice ide ima imm imp imp inc ind ind ine inf inf inf inh inn ins ins int int int int int int int int inv ion ion Irr iso iso iso Jal JHK Jul jur Kel Kep kin kne L d Lag lam Lap lar lat law Lea len lep lib lig lin lin lin liq lit loc log lon Los low lum lun Lut Lyr mac mag mag mag mag mag maj man Mar mas mas mat Max mea mec mel Mer Mes met met met mic mid Mil min mir mix mod mod mol mon mor mov mul muo mys nan nat Nav nec nep neu new New NGC Noa nom non non nor not nuc nuc num nyc obj obs obs oce odd OH Omi Oor ope opt 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 phl pho pho pho phy Pip Pla pla PLA pla ple plu pol pol pol pol pop pos pos pot Pra pre pre pre pre pri pri pro pro pro pro pro pro pro pse pul pur qua qua qua qua qui rad rad rad rad rad rad raf ran rar ray rea rea rec rec red red ref ref reg rel rel rel rep res res res res ret rev ric rig rin roc ROS rot Rox rus Sad sal sat sca sca Sch sci scy sec sec see sel sem sen Ser sex Sha she sho sid sig sil sim sin siz sle SMA SNR Sof sol sol sol sol sou Sou spa Sp spe spe spe sph spi Spi spr sta sta sta sta sta ste ste ste sto str str Sty sub sub suc sun sup sup sup sup sur Swa syn syn tac tas tel tem ter tes the the the the Tho thr tid tim Tit top tot tra tra TRA tra tre tri tri tru tum tur TY Typ ult una und uni uni uno upp urg UX Van var veg vel ver vib vio vir vis Voi vow wan wat wav WC wea wel whi Wil wir WNh wor X-r yel ytt zer zon > >>

Number of Results: 13046 Search : far
Sersic profile
  فراپال ِ سرسیک   
farâpâl-e Sérsic

Fr.: profile de Sérsic   

A mathematical function that describes how the → intensity  I of a → galaxy varies with distance R from its center. It is given by: (dln I/dln R) = -(b/n)(R/Re)1/n. The constant b is chosen such that Re is the → effective radius; n is the Sérsic index. The Sérsic profile is a generalization of → de Vaucouleurs law. Setting n = 4 gives the de Vaucouleurs profile.

J. L. Sérsic, 1963, Boletin de la Asociacion Argentina de Astronomia, Vol. 6, p.41; → profile.

serve
  زاوریدن   
zâvaridan

Fr.: servir   

To render assistance; be of use. To have definite use.

Verbal form of service, → server.

server
  زاور   
zâvar

Fr.: serveur   

General: Something that serves or is used in serving.
Computers: A computer software application that carries out some task on behalf of users. When users connect to a server, they can access programs, files, and other information from the server. Common servers are Web, mail, and database servers. A single computer can have several different server programs running on it.

Server, agent noun from serve, from M.E. serven, from O.Fr. servir "to serve," from L. servire "to serve," originally "be a slave," related to servus "slave;" cognate with Av. har- "to guard, watch," harətar- "guardian," hāra- "caring for;" Mid./Mod.Pers. zinhâr "protection, security; beware! mind!"

Zâvar "attendant, servant" (Dehxodâ), zâvari "attendance, service" (Dehxodâ), maybe related to Skt. sev- "to attend upon, serve," sevā- "service, attendance, worship," sevati "serves, attends," sevaka- "attendant, servant, follower."

service
  زاوری، زاورش   
zâvari, zâvareš (#)

Fr.: service   

1) A helpful act by somebody for somebody else as a job, duty, or favor.
2) A system or organization supplying some public demand, e.g. transportation, telephone, health.
3) A facility providing maintenance and repair.

M.E., from O.Fr. servise, from L. servitium "slavery, servitude," from servus "slave," servire "to serve," originally "be a slave;" cognate with Av. har- "to guard, watch," → server.

Zâvari "service" (Dehxodâ) → server.

service observing
  نپاهش با زاوَری، ~ ِ زاورشی   
nepâheš bâ zâvari, ~ zâvareši

Fr.: observation de service   

Observation approved by the selection committee of an observatory which is carried out by the staff astronomers of the observatory.

service; → observation.

set
  ۱) هنگرد؛ ۲) فرو‌شدن؛ ۳) بشتیدن   
1) hangard; 2) forušodan (#); 3) beštidan

Fr.: 1) ensemble; 2) se coucher; 3) placer, poser, régler   

1) Math.: A finite or infinite collection of objects in which order has no significance. Members of a set are often referred to as elements and the notation a ∈ A is used to denote that a is an element of a set A. The study of sets and their properties is the object of set theory.
2) To pass below the horizon. → moonset; → sunset.
3a) (tr.v.) To put (something or someone) in a particular place.
3b) To adjust a device to a desired position.

1) M.E. sette, from O.Fr. sette "sequence," variant of secte, from M.L. secta "religious group, sect," from L. secta "manner, following, school of thought," literally "something to follow, pathway, course of conduct, school of thought," from sectari "to pursue, accompany," "a way, road," from sequi "to follow," → sequence.
2) M.E. setten, O.E. settan "cause to sit, put in some place, fix firmly;" cf. O.N. setja, O.Fris. setta, Du. zetten, Ger. setzen.

1) Hangard, from Mid.Pers. hangart "whole, complete," hangartik "complete," hangartênitan "to collect, assemble," from *hamkard- literally "created, cut together," from han- variant of ham- "together," cognate with L.L. insimul "at the same time," from in- intensive prefix + simul "together, at the same time" (cf. Gk. homos "same," Mod./Mid.Pers. ham- "together, with," O.Pers./Av. ham-, Skt. sam-; also O.Pers./Av. hama- "one and the same," Skt. sama-; originally identical with PIE numeral *sam- "one," from *som-). (→ com-), + gard, variant of kard "created, cut," Mid.Pers. kirrēnītan, kirrēn- "to cut, create," cf. fragard "section, chapter," Av. karət- "to cut," kərəntaiti "cuts, breaks," with fraca- "to create, bring forth," karəta- "knife, dagger" (Mid.Pers. kârt "knife;" Mod.Pers. kârd "knife"), Skt. kart- "to cut, split, break," krti- "sword, knife;" PIE base *(s)kert- "to cut;" Hitt. kartae- "to cut;" Arm. kherthem "to skin;" L. cortex "bark of a tree," corium "skin, leather;" O.H.G. scrinden "to split;" Lith. kertu "to fell, cut down."
2) Forušodan, literally "to descend, go down," from foru- "down, downward; below; beneath" (Mid.Pers. frôt "down, downward;" O.Pers. fravata "forward, downward;" cf. Skt. pravát- "a sloping path, the slope of a mountain") + šodan "to go, to pass; to become, to be, to be doing" (Mid.Pers. šudan, šaw- "to go;" Av. š(ii)auu-, šiyav- "to move, go," šiyavati "goes," šyaoθna- "activity; action; doing, working;" O.Pers. šiyav- "to go forth, set," ašiyavam "I set forth;" cf. Skt. cyu- "to move to and fro, shake about; to stir," cyávate "stirs himself, goes;" Gk. kinein "to move;" Goth. haitan "call, be called;" O.E. hatan "command, call;" PIE base *kei- "to move to and fro").
3) Beštidan, from bešt past stem of Tabari/Mâzandarâni beštan "to place, put, set," from intensive prefix be- + eštan, from heštan "to place, put," → intercalate.

set partition
  پرکش ِ هنگرد   
parkeš-e hangard

Fr.: partition d'un ensemble   

A collection of → nonempty subsets of a set A such that every element of A is in exactly one of the subsets. In other words, A is the → disjoint  → union of these subsets.

partition; → set.

set theory
  نگره‌ی ِ هنگرد   
negare-ye hangard

Fr.: théorie des ensembles   

The branch of mathematics that studies sets. Set theory is closely associated with the branch of mathematics known as logic. It was initiated by the German mathematician Georg Cantor (1845-1918).

set; → theory.

set up
  بربشتیدن   
barbeštidan

Fr.: installer   

To install and configure hardware and software on a computer.

Verb of → setup.

setting
  ۱) فروشد؛ ۲) بشته   
1) forušod (#); 2) bešte

Fr.: 1) coucher; 2) configuration, réglage   

1) The act of setting; the appearance of a → celestial body below the → horizon. Opposite of → rising.
2) A change in a software program or hardware device that adjusts it to the user's preference. For example, date and time setting, language setting, display setting, font setting, etc.

set; → -ing.

setting circles
  دایره‌های ِ آماج‌گیری   
dâyerehâ-ye âmaj-giri

Fr.: cercles de pointage   

Two graduated disks attached to the right ascension and declination axis of an equatorial mount used in amateur astronomy that help an observer find astronomical objects in the sky by their equatorial coordinates.

M.E.; O.E. settan "cause to sit, put in some place, fix firmly" (cf. O.N. setja, O.Fris. setta, Du. zetten, Ger. setzen); → circle.

Dâyeré, → circle; âmâj-giri "taking aim," from âmâj "aim, target," → point + giri "taking" (vebal noun of gereftan "to take, seize, hold;" Mid.Pers. griftan, gir- "to take, hold, restrain;" O.Pers./Av. grab- "to take, seize," cf. Skt. grah-, grabh- "to seize, take," graha- "seizing, holding, perceiving," M.L.G. grabben "to grab," from P.Gmc. *grab, E. grab "to take or grasp suddenly;" PIE *ghrebh- "to seize").

settle
  ۱) نیاشاندن؛ ۲) نیاشیدن   
1) niyâšândan; 2) niyâšidan

Fr.: 1) stabiliser, régler, mettre en ordre, calmer; 2) se dépose, retomber, s'apaiser, s'installer   

1) (tr.) To put in order; arrange in a desired state or condition.
2) (intr.) To come to rest or a halt. To become fixed in a particular place, direction, etc. (Dictionary.com).

M.E. set(t)len, O.E. setlan "to place," derivative of setl "a seat; stall; position, abode;" related to sittan "to sit," from Proto-Germanic *setla- (cognates: Middle Low German, Middle Dutch setel, Dutch zetel, German Sessel, Gothic sitls), from PIE *sedla- (cognates: L. sella "seat, chair," O.C.S. sedlo "saddle," O.E. sadol "saddle"), from root *sed-.

Niyâšidan, from Yidghda niâst- , Munji niôst- "to sit down;" Nâini âš-/âšis- "to become seated;" Baluci ništ, related to nešastan "to sit down," → sit (see also → reside); ultimately from Proto-Ir. *had- "to sit, be setaed."

settled disk
  گرده‌ی ِ نیاشیده   
gerde-ye niyâšidé

Fr.: disque stabilisé   

A → galactic disk that has undergone → disk settling.

settle; → disk.

settling
  نیاشش   
niyâšeš

Fr.: stabilisation; dépose   

The act of a person or thing that settles. → disk settling, → dust settling.

settle; → -ing.

setup
  بربشت   
barbešt

Fr.: installation   

1) The process of connecting and preparing a software program, hardware device, or computer to function properly. Setup is a file commonly called "setup.exe" that is executed to begin installing a software program onto a computer. See also → set up.
2) Equipment designed for a particular purpose; an apparatus.
3) The fashion in which something is organized or arranged.

set; → up.

Barbešt, from prefix bar-, → on-.

seven
  هفت   
haft (#)

Fr.: sept   

A → cardinal number between → six and → eight.

From M.E. seoven(e), seofne, seven, O.E. seofon, cognate with M.Du. seven, Du. zeven, O.H.G. sibun, Ger. sieben, related to Pers. haft, as below, from PIE *septm "seven."

Haft, from Mid.Pers. haft, Av. hapta Skt. sapta, Gk. hepta, L. septem.

sexagesimal
  شست-شستی   
šast-šasti (#)

Fr.: sexagésimal   

Relating to, or based on, the number 60.

From M.L. sexagesimalis, from L. sexagesimus "sixtieth," from sexaginta "sixty."

Šast-šasti, from Šast, → sixty.

sexagesimal system
  راژمان ِ شست-شستی   
râžmân-e šast-šasti

Fr.: système sexagésimal   

A number system whose base is 60. It originated with the ancient Sumerians around 2000 B.C., was transmitted to the Babylonians, and is still used in modified form for measuring time, angles, and geographic coordinates.

sexagesimal; → system.

Sextans
  ششکان   
Šešakân

Fr.: Sextant   

The Sextant. An inconspicuous constellation located on the celestial equator at 10h 20m, 0° declination. Its brightest star, Alpha Sextantis is of 4th magnitude. It was introduced in the 17th century by Johannes Hevelius (1611-1687). Abbreviation: Sex; genitive: Sextantis.

The name is L. for → sextant, an instrument that Hevelius made frequent use of in his observations.

sextant
  ششکان   
šešakân

Fr.: sextant   

An instrument used mainly in nautical astronomy to determine the angular distances of celestial bodies above the horizon. The sextant consists of a 60° graduated arc, or limb, a small telescope, and two mirrors. Only half of one of the mirrors, the horizon glass, is silvered and, like the telescope, it is fastened to the frame supporting the limb. The other mirror, the index mirror, moves with an index arm pivoted at the center of the arc. The index arm is equipped with a → vernier which moves along the limb. An object in direction S can be observed in the telescope through the un-silvered portion of the horizon glass. By moving the index arm, the second object S' is made to coincide with S in the telescope. According to the law of reflection, the angle between S and S' is double the angle between the mirrors. The angular distance between the objects can therefore be obtained from the measurement of angles between the planes of the mirrors.

From Mod.L. sextans, from L. sextans "a sixth," from sexsix.

Šešakân, from šešak "a sixth," from šeš, → six + -ak, contraction of yak "one," (Mid.Pers. êwak; Proto-Iranian *aiua-ka-; O.Pers. aiva- "one, alone;" Av. aēuua- "one, alone" (cf. Skt. éka- "one, alone, single;" Gk. oios "alone, lonely;" L. unus "one;" E. one) + -ân nuance suffix.

<< < -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 Asi ass ast ast asy atm ato att aut ave axi Bab bal ban bar bar bea Bel Bes bia Big bin bin bip Bla bla bli blu Boh Bon bos Bou bra bri bro bur cal cal can Cap car Car cat Cau cea Cen cen cha Cha cha che chi chr cir cir civ cla clo clo CMB 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 cop Cor CoR cor cos cos Cou cou CP- cre cri cro cub cur cya Cyg dan dar dau de- deb dec dec dee def deg del den den dep des deu dew dia dif dif dih dip dir dis dis dis dis dis diu doc dop dou DQ dry dus dwa dyn Dys Ear ecc eco edi EHB Ein ela ele ele ele ele ell eme emp end Eng ent epi equ equ era ESP eth Eur evi exa exc exe exi exp exp ext ext eye fac fal Far fed Fer fer fie fin fir fit fla flo flu fol for for Fou fra fre Fre fro fuz gai Gal Gal gam gas Gau gen gen geo geo geo gia glo gol gra gra gra gra gre gri gui H I hai Ham har Hau hea hec hel hel her HES hie hig his hom hor hot Hub Hul Huy hyd hyd hyl hyp ice ide ima imm imp imp inc ind ind ine inf inf inf inh inn ins ins int int int int int int int int inv ion ion Irr iso iso iso Jal JHK Jul jur Kel Kep kin kne L d Lag lam Lap lar lat law Lea len lep lib lig lin lin lin liq lit loc log lon Los low lum lun Lut Lyr mac mag mag mag mag mag maj man Mar mas mas mat Max mea mec mel Mer Mes met met met mic mid Mil min mir mix mod mod mol mon mor mov mul muo mys nan nat Nav nec nep neu new New NGC Noa nom non non nor not nuc nuc num nyc obj obs obs oce odd OH Omi Oor ope opt 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 phl pho pho pho phy Pip Pla pla PLA pla ple plu pol pol pol pol pop pos pos pot Pra pre pre pre pre pri pri pro pro pro pro pro pro pro pse pul pur qua qua qua qua qui rad rad rad rad rad rad raf ran rar ray rea rea rec rec red red ref ref reg rel rel rel rep res res res res ret rev ric rig rin roc ROS rot Rox rus Sad sal sat sca sca Sch sci scy sec sec see sel sem sen Ser sex Sha she sho sid sig sil sim sin siz sle SMA SNR Sof sol sol sol sol sou Sou spa Sp spe spe spe sph spi Spi spr sta sta sta sta sta ste ste ste sto str str Sty sub sub suc sun sup sup sup sup sur Swa syn syn tac tas tel tem ter tes the the the the Tho thr tid tim Tit top tot tra tra TRA tra tre tri tri tru tum tur TY Typ ult una und uni uni uno upp urg UX Van var veg vel ver vib vio vir vis Voi vow wan wat wav WC wea wel whi Wil wir WNh wor X-r yel ytt zer zon > >>