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: 13009 Search : far
mouth
  دهان   
dahân (#)

Fr.: bouche   

1) The body opening through which an animal takes in food.
2) This cavity regarded as the source of sounds and speech (TheFreeDictionary.com).

M.E., from O.E. muth "mouth, opening, door, gate;" cf. O.Sax., O.Norse munnr, Dan. mund, Du. mond, Ger. Mund.

Dahân "mouth," variant zafar "mouth;" Mid.Pers. dahân "mouth;" from *dafân the south-west form of Av. zafan, zafar "mouth;" cf. Skt. jambha- "set of teeth, mouth, jaws;" Ger. Kiefer "jaw."

movable
  میاویدنی، میاوپذیر   
miyâvidani, miyâvpazir

Fr.: mobile   

Capable of being moved; not fixed in one place, position, or posture (Dictionary.com).

move; → -able.

move
  ۱) جنبیدن، میاویدن؛ ۲) جنباندن، میاواندن   
1) jonbidan (#), miyâvidan; 2) jonbândan (#), miyâvândan

Fr.: 1) se mouvoir, bouger; 2) mouvoir, bouger   

1) To go from one place or position to another.
2) To change the position or location of something.

M.E. meven, moven; O.Fr. moveir; L. movere "move, set in motion;" Av. miuu- "to shove," as below.

Jonbidan "to move;" Lori, Laki jem "motion," Kurd. -žim- "to move, stir," žimây-/žimn- "to rock a cradle," Sogd. âyamb "to pervert, seduce, deceive," yâb "to wander, travel, rove;" Mid.Pers. jumbidan, jumb- "to move;" cf. Tocharian yâw-, yâp- "to enter;" Luwian /iba-/ "west;" PIE base *ieb(h)- "to go, move inside" (Cheung 2007).
Miyâvidan, ultimately from Proto-Ir. *miHu- "to move;" cf. Av. auua.miuu- "to remove;" Khotanese mvīr- "to move;" Mid.Pers. pr-mws- "to be terrified;" Skt. mīv-/mu- "to move, remove, push;" L. movere, as above; PIE root *mieuH- "to set into motion" (Cheung 2007).

movement
  میاوش   
miyâveš

Fr.: movement   

The act, process, or result of moving. A particular manner or style of moving.

move; → -ment.

moving
  جنبنده، جنبان، درجنبش، میاونده   
jonbandé, jonbân, dar jonbeš, miyâvandé

Fr.: en mouvement   

In a state of movement. → moving cluster; → moving frame.

Verbal adj. of move, → motion.

moving cluster
  خوشه‌ی ِ جنبنده   
xuše-ye jonbandé (#)

Fr.: amas en mouvement   

A group of stars dynamically associated so that they have a common motion with respect to the local standard of rest.

moving; → cluster.

moving frame
  چارچوب ِ درجنبش   
cârcub-e darjonbeš

Fr.: référentiel en mouvement   

A → frame of reference that moves relative to the observer. The moving frame may be → inertial or → non-inertial. See also → rest frame.

moving; → frame.

moving group
  گروه ِ جنبنده   
goruh-e jonbandé

Fr.: groupe mobile   

A young → stellar population that shares a common space motion. A moving group remains kinematically distinct within the general field stars at ages < 1 billion years, before being dispersed. As progenitor gas is cleared by OB star winds, and the natal cluster expands, stars with sufficiently high velocities become unbound and form a young, coeval moving group, possibly leaving behind a bound open cluster. Because of their common origin, moving group members have a shared age and composition. The nearest moving group is the → TW Hydrae association.

moving; → group.

MRN dust model
  مدل ِ MRN   
model-e MRN

Fr.: modèle MRN   

A model concerned with the distribution in size of → interstellar grains to account for observations of → interstellar extinction from 0.11 μm to 1.0 μm. The → distribution has the form N(a)da ∝ a-3.5da, where a is the grain radius. It extends from 5 nm to 1 μm for → graphite and over a narrower range for other materials.

MNR, the initials of authors J. S. Mathis, W. Rumpl, and K. H. Nordsiek (1977, ApJ 217, 425), who introduced the mode; → dust; → model.

Mu Cephei
  مو-کفءوس   
μ Kefeus

Fr.: μ Cephei   

A → red supergiant star in the → constellation → Cepheus. It is one of the largest and most luminous stars known in the → Milky Way. μ Cephei appears garnet red and is given the → spectral type of M2 Ia. The star may even be the largest star visible to the → naked eye with an estimated radius of 1.15 billion kilometres. If it replaced the Sun, it would extend beyond the orbit of Saturn. Some of its → physical parameters are: mass = 15 Msol; → radius = 1650 Rsol; → luminosity = 60 x 104 Lsol; → effective temperature = 3690 K. Also called Herschel's → Garnet star.

Cephei, genitive of → Cepheus.

mule
  استر   
astar (#)

Fr.: mulet   

The → sterile offspring of a female horse and a male donkey.

M.E., from O.E. mul, from O.Fr. mul "mule, hinny," from L. mulus "a mule," probably from a pre-Latin Mediterranean language.

Astar, from Mid.Pers. astar, ultimately from *asa-tara-, literally "horse related," from *asa- variant of aspa-, → horse, + -tara- a suffix of relation and comparative adjectives; cf. Skt. asvátara- "mule."

multi-
  بس-   
bas- (#)

Fr.: multi-   

A combining form meaning "many, much, multiple, many times, more than one, more than two, composed of many like parts, in many respects."

From L. multus "much, many," from PIE base *mel- "strong, great, numerous;" cf. L. melior "better," Gk. mala "very, very much."

Bas-, from bas "many, much;" Mid.Pers. vas "many, much;" O.Pers. vasiy "at will, greatly, utterly;" Av. varəmi "I wish," vasô, vasə "at one's pleasure or will," from vas- "to will, desire, wish."

multi-object spectroscopy
  بیناب‌نمایی ِ بس‌-بر‌آختی   
binâbnamâyi-ye bas-barxâti

Fr.: spectroscopie multi-objets   

A technique of spectroscopy using fiber optics whereby several objects distributed over the field of view can be observed simultaneously.

multi-; → object; → spectroscopy.

multidisciplinary
  بس-هاوشانی، بس-هاوشان‌مندی   
bas-hâvešâni, bas-hâvešânmand

Fr.: multidisciplinaire   

Of an approach or study that juxtaposes disciplinary perspectives, adding breadth and available knowledge, information, and methods. The involved disciplines speak as separate voices in encyclopedic alignment. The status quo is not interrogated, and disciplinary elements retain their original identity. See also → interdisciplinary and → transdisciplinary (Thompson Klein, J. 2010, Creating Interdisciplinary Campus Culture, John Wiley and Sons, Inc.).

multi-; → disciplinary.

multiplanet system
  راژمان ِ بس-سیاره‌ای   
râžmân-e bas-sayâre-yi

Fr.: système multi-planète   

A stellar system with more than one orbiting planet.

multi-; → planet; → system.

multiple
  بستا، بستایی   
bastâ, bastâyi

Fr.: multiple   

Consisting of, having, or involving several or many individuals, parts, elements, etc.
Math.: A number that contains another number an integral number of times without a remainder: 25 is a multiple of 5.

From Fr. multiple, from L.L. multiplus "manifold," from L. → multi- "many, much" + -plus "fold," from base of plicare "to fold, twist."

Bastâ-, from bas "many, much" (Mid.Pers. vas "many, much;" O.Pers. vasiy "at will, greatly, utterly;" Av. varəmi "I wish," vasô, vasə "at one's pleasure or will," from vas- "to will, desire, wish") + "fold, plait, ply; piece, part," also a multiplicative suffix; Mid.Pers. tâg "piece, part."

multiple exposures
  نورداد ِ بستایی   
nurdâd-e bastâyi

Fr.: poses multiples   

The division of a relatively long exposure into several successive shorter ones, e.g. to avoid detector saturation.

multiple; → exposure.

multiple integral
  درستال ِ بستایی   
dorostâl-e bastâyi

Fr.: intégrale multiple   

A series of successive integrations in which the integral operator acts on the result of preceding integration.

multiple; → integral.

multiple scattering
  پراکنش ِ بستایی   
parâkaneš-e bastâyi

Fr.: diffusion multiple   

A process of → radiative transfer in which more than one → scattering event may be of importance before → transmission, → reflection, or → absorption. In → radiation-driven winds photon scattering can take place in different → spectral lines. Each scattering occurs in a different spectral line, and successive scatterings occur at lower energies (longer wavelength). The standard theory of line driving (→ CAK model) assumes that photons can be scattered only once in the wind, which is a reasonable assumption for normal → O stars. In → Wolf-Rayet stars, where photons evolve in an atmosphere with a strong → ionization stratification, multiple scattering is important. Indeed the strength of W-R winds appears to exceed the single scattering limit.

multiple; → scattering.

multiple star
  ستاره‌ی ِ بستایی   
setâre-ye bastâyi

Fr.: étoile multiple   

A star which appears single but is in fact composed of more than two components. See also → multiple star system; → binary star; → triple star.

multiple; → star.

<< < -es -iv -ti 21- a p abe abs abs acc acc acc act act ada adi ads aes Age Alb Alf ali all alp alt ama amp ana ang ang ann ano ant ant ape apo app app arb are ari art ass ast ast ast Atl ato ato Aug aut awa azi bac bal Bar Bar Bay bea Bep Bet BIC bij bin bio bir bla bla blu blu bol Boo bou Bq bre bri bub B[e cal cal can car car Cas cat cau cel cen Cer cha cha cha che chi CI cir cir cla cle clo clu co- cob 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 coo cor cor cor cos cos cos cou cov cra cri cro cry cum cur cyc d'A dar dat DC dea dec dec dec def def deh Del den dep des det deu dia dif dif dif dim dip Dir dis dis dis dis dis div dom dos dou dri Dum dus dyn dyn ear eas ecl Edd eff Ein eje ele ele ele ele eli emb emi Enc ene ens eph epo equ equ eru eth Eul eve evo exc exc exi exo exp exp ext ext Fab fai Fan fea fem fer fie fil fir fir fla flo flu foc For for fos fra fre fre fro fun g m Gal gal gal gas gau gel gen geo geo geo gho gla gno gra gra gra gra Gre Gre gro gyr had hal har Har HD hea hel hel Her Her Hic hig hip hol hor hos hov Hub hun hyd hyd Hyd hyp IC ide ill ima imp imp inc inc ind ind inf inf inf inf inj ins ins int int int int int int int int inv inv ion iro Isl iso iso Jac jet jud jur kel Kep kil Kle 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 Mei Mer Mer met met Met mic mid Mil min Mir mix mod mod mol mon Mor mou mul muo mys nan nat nav nec Nep neu New New NGC nob nom non non nor not nuc nuc num Nyq obj obs obs oce oen OH omn opa 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 pet pha Pho pho pho pho Pic Pis Pla pla pla pla Ple poa pol pol pol pol pop pos pos pow pra pre pre pre pri pri pri pro pro pro pro pro pro pro Pto pul puz qua qua qua qua qui rad rad rad rad rad rad rai ran rar Ray rea Rea rec rec red red ref ref reg rel rel rel rep res res res res ret Rhe rid rig ris Roe Ros rot rub rut Sag sam sat sca sca Sch sci sea sec sec see sel sem sen ser Sgr sha shi sho sid sig sim sin Sir ske sli smo soc sol sol sol sol sol sou sou spa spe spe spe spe sph spi spl spu sta sta sta sta sta ste ste sti sto str Str sub sub sub sul sup sup sup sup sur sus sym syn sys Tam Tay tel ten Ter Tha the the the thi thr tib tid tim tok Tor tot tra tra tra tra Tri tri tro tru tur twi Typ ufo ult unc uni uni uni upl ura uti val var vec vel ver ver vil vir vis voc von wak Was wav wax wea wei whi Wie win WN6 wom X-r yea You zer zod > >>