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: 13116 Search : far
massive
  پرجرم   
porjerm (#)

Fr.: massif   

Consisting of or forming a large mass.

From M.Fr. massif (feminine massive) "bulky, solid," from O.Fr. masse "lump."

Porjerm, from por "full, much, very, too much," (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) + jerm, → mass.

massive black hole
  سیه‌چال ِ پرجرم   
siyahcâl-e porjerm

Fr.: trou noir massif   

A black hole with a mass between millions and billions of solar masses residing in galactic nuclei. The mass of this type of black holes represents about 0.2% of the bulge mass. When matter is swallowed by the black hole, this gives rise to the tremendous energetic phenomena observed in quasars and active galactic nuclei.

massive; → black hole.

massive close binary
  دورین ِ کیپ ِ پرجرم   
dorin-e kip-e porjerm

Fr.: binaire serrée massive   

A → close binary system composed of two → massive stars.

massive; → close binary star.

massive halo
  هاله‌ی ِ پرجرم   
hâle-ye porjerm

Fr.: halo massif   

Spheroidal distribution of dark matter surrounding a galaxy.

massive; → halo.

massive star
  ستاره‌ی ِ پرجرم   
setâre-ye porjerm (#)

Fr.: étoile massive   

A star whose mass is larger than approximately 10 → solar masses. The → spectral types of massive stars range from about B3 (→ B star) to O2 (→ O star) and include → Wolf-Rayet stars as well as → Luminous Blue Variables. Massive stars are very rare; for each star of 20 solar masses there are some 100,000 stars of 1 solar mass. Despite this rarity, they play a key role in astrophysics. They are major sites of → nucleosynthesis beyond oxygen and, therefore, are mainly responsible for the → chemical evolution of galaxies. Due to their high ultraviolet flux and powerful → stellar winds, they bring about interesting phenomena in the → interstellar medium, like → H II regions, → turbulence, → shocks, → bubbles, and so on. Massive stars are progenitors of → supernovae (→ type Ia, → type Ic and → type II), → neutron stars, and → black holes. The formation processes of massive stars is still an unresolved problem. For massive stars the → accretion time scale is larger than the → Kelvin-Helmholtz time scale. This means that massive stars reach the → main sequence while → accretion is still going on.

massive; → star.

master
  مستر   
mastar (#)

Fr.: maître   

1) A person with the ability or power to use, control, or dispose of something.
2) An employer of workers or servants.
3) The male head of a household (Dictionary.com).

M.E. maistre, maister, from O.E. magister, from L. magister "chief, head, director, teacher," ultimately from PIE root *meg- "great," cf. Pers. meh-, as below.

(Aftari) Mastar "elder; larger," (Dari Kermân) mastar "leader, guide," variants (Aftari, Tafreši) mester "elder; great," massar "large, great, high," from (Nâini, Sangesari, Dari Yazd, Kermâni) mas "great, large," variant of meh "great, large, principal," cognate with L. magister "chief, head, director, teacher;" → Big Bang, + comparative suffix -tar.

match
  کاد   
kâd

Fr.: match, partie   

A game or contest in which two or more contestants or teams oppose each other (Dictionary.com).

Originally "one of a pair, an equal;" O.E mæcca, "companion, mate, one of a pair, wife, husband, an equal," from gemæcca; cf. O.S. gimaco "fellow, equal," O.H.G. gimah "comfort, ease," M.H.G. gemach "comfortable, quiet," Ger. gemach "easy, leisurely."

Kâd, from Mid.Pers. kâdag "game," Sogd. kâtak "game, play;" cf. Kurd. (Sorani) kâya "game," Zazaki kây, Abyâneyi, Anâraki, Nâini kâye, Qohrudi kâda, Shamerzâdi ke, Zefrehi "game, play;" Av. kā- "to take pleasure, desire;" Skt. kā- "to desire, wish."

mater
  مادر   
mâdar (#)

Fr.: mère, matrice   

The body of the → planispheric astrolabe which is a thin circular plate, with a hole in the center. It has a thicker, raised, and graduated edge, called the → limb. The hollow of the mater holds the → tympanum and the rotating → rete. The upper part of the mater carries a jointed ring, called the → throne. By slipping one's thumb into the ring, one raises the instrument so that its weight and symmetrical design keeps it perpendicular to the ground. On the back of the mater are engraved several circular scales (online museo galileo, VirtualMuseum).

From L. mater, → mother.

material
  ۱) ماده‌ای، مادی، مادیگ؛ ۲) مادیگ   
1) mâdeyi, mâddi, mâdig; 2) mâdig

Fr.: 1, 2) matériel   

1) (adj.) Formed or consisting of matter.
2) (n.) The substance or matter from which something is or can be made, or also items needed for doing or creating something.

From L.L. materialis (adj.) "of or belonging to matter," from L. materia, → matter, + → -al.

Mâdig, from mâd, mâddé, → matter, + -ig, → -ic.

materialism
  مادّه‌باوری   
mâddebâvari (#)

Fr.: matérialisme   

Belief that physical matter is the only reality and that everything, including thought, feeling, mind, and will, can be explained in terms of matter and physical phenomena.

N.L. materialismus; → material + -ism.

Mâddebâvari, from mâddé, → matter, + bâvari, from bâvar "belief" (Mid.Pers. wâbar "beleif;" Proto-Iranian *uar- "to choose; to convince; to believe;" cf. Av. var- "to choose; to convince" varəna-, varana- "conviction, faith;" O.Pers. v(a)r- "to choose; to convince;" Skt. vr- "to choose," vara- "choosing").

materiality
  مادیگی   
mâddigi

Fr.: matérialité   

The state or quality of being material.

material; → -ity.

materialization
  ۱) مادیگش؛ ۲) مادیگانش   
1) mâdigeš 2) mâdigâneš

Fr.: matérialisation   

The act or process of materializing.

Verbal noun of → materialize.

materialize
  ۱) مادیگیدن؛ ۲) مادیگاندن   
1) mâdigidan; 2) mâdigândan

Fr.: 1) se matérialiser; 2) matérialiser   

1a) To come into material form. To take shape.
1b) To form material particles from energy, as in → pair production.
2) To give material form to.

material; → -ize.

mathematical
  مزداهیک، ریاضی   
mazdâhik (#), riyâzi (#)

Fr.: mathématique   

Of, relating to, or of the nature of mathematics.

mathematics; → -al.

mathematical beauty
  زیبایی ِ مزداهیک   
zibâyi-ye mazdâhik

Fr.: beauté mathématique   

Same as → mathematical elegance.

mathematical; → beauty.

mathematical conjecture
  هاشن ِ مزداهیک   
hâšan-e mazdâhik

Fr.: conjecture mathématique   

A statement that one expects to be true, but for which one does not yet know a proof. Once the → proof is found, the conjecture becomes a → theorem.

mathematical; → conjecture.

mathematical elegance
  قشنگی ِ مزداهیک   
qašangi-ye mazdâhik

Fr.: élégance mathématique   

A mathematical solution or demonstration when it yields a result in a surprising way (e.g., from apparently unrelated theorems), is short, and is based on fundamental concepts. According to Henri Poincaré, what gives the feeling of elegance "is the harmony of the different parts, their symmetry, and their happy adjustment; it is, in a word, all that introduces order, all that gives them unity, that enables us to obtain a clear comprehension of the whole as well as of the parts. ... Elegance may result from the feeling of surprise caused by the un-looked-for occurrence together of objects not habitually associated. ... Briefly stated, the sentiment of mathematical elegance is nothing but the satisfaction due to some conformity between the solution we wish to discover and the necessities of our mind" (Henri Poincaré, Science and Method, 1908). According to Bertrand Russell, "Mathematics, rightly viewed, possesses not only truth, but supreme beauty -- a beauty cold and austere, like that of sculpture, without appeal to any part of our weaker nature, without the gorgeous trappings of painting or music, yet sublimely pure, and capable of a stern perfection such as only the greatest art can show" (Bertrand Russell, A History of Western Philosophy, 1945).

mathematical; → elegance.

mathematical expectation
  امید ِ مزداهیک، بیوسش ِ ~، ~ ِ ریاضی   
omid-e mazdâhik, bayuseš-e ~, ~ riyâzi

Fr.: espérance mathématique   

In probability and statistics, of a random variable, the summation or integration, over all values of the random variable, of the product of the value and its probability of occurrence. Also called → expectation, → expected value.

mathematical; → expectation.

mathematical object
  بر‌آخت ِ مزداهیک، ~ ریاضی   
barâxt-e mazdâhik, ~ riyâzi

Fr.: objet mathématique   

An → abstract object dealt with in mathematics that has a definition, obeys certain properties, and can be the target of certain operations. It is often built out of other, already defined objects. Some examples are → numbers, → functions, → triangles, martices (→ matrix), → groups, and entities such as → vector spaces, and → infinite series.

mathematical; → object.

mathematician
  مزداهیکدان   
mazdâhikdân

Fr.: mathématicien   

An expert or specialist in → mathematics.

M.E. mathematicion, from M.Fr. mathematicien, from mathematique, from L. mathematicus, → mathematics.

Mazdâhikdân, from mazdâhik, → mathematics, + -dân "knower," present stem of dânestan "to know," → science.

<< < -es -iv -ti 21 a p abe abs abs aca acc acc acr act ada adh Adr aer aga air Alf Alg alk Alp alt alu amm ana And ang ani ano ant ant Ap apo app app Aqu Arc arg arr asc ass ast ast asy atm ato att aur aut axi B-m bad Bal bar bar Bay Bed ber Bet bif bim bin bio bis bla ble blu Bod Bol bor bou Bra Bre bro bul C-t Cal Cam can car Car Cas cat cav cel cen cer Cha cha Cha che chl Cir cir cir Cla cli clo clu co- coc 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 cou Cra Cre cri cro cub cur cyc cyl Dan dat Dav de- Deb dec dec dee def deg del Den den der det deu dew dic dif dif dil Dip dir dis dis dis dis dis diu dod Dop dou Dra dua dus dwa dyn DZ 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 ext fac fal far fec Fer fer fie fin fir fis fla Flo flu fog for for Fou fra fre fre Fro fun G s Gal gal gal Gar gau geg gen geo geo geo ger gla gly gra gra gra gra gra Gre gro GYR Had Hal hap Har HD hea hel hel Hen Her hex hig Hil hol Hoo hor hou Hub hum hyb hyd hyd hyp hys ide ign ima imp imp in- inc Ind ind ine inf inf inf ini ins ins ins int int int int Int int int int inv ion iri irr iso iso iso Jea Jor jum K c Kep Ker kin kno lab Lam Lan Lap las lat Le lef len lev lig lig lin lin lin liq Lit loc log lon lou LS lun lun Lym M s Mag mag mag mag mag mag maj man Mar mas mas mat May mea mec mel mer mes met met met mic mid mil Min Mir mix mod mod mol mon mor mov mul mur mys nan nat nav nec Nep neu New New NGC nob nom non non nor nos nuc nuc num nut obj obl obs occ oct off oli oni ope opp opt opt orb ord org orp osc out ove oxi P-w pal par par par par Pas pat pej per per per per per per pha Phe pho pho pho phy pin pla Pla pla pla pla plu poi pol pol Pol pol por pos pot Poy pre pre pre pre pri pri pri pro pro pro pro pro pro Psa pul pum Q i qua qua qua qua R A rad rad rad rad rad rad Ram Ran rat rea rea rec rec red red ref ref reg rei rel rel rem rep res res res ret rev Rho Rie ril riv rog Ros rot rul S A Sag sam sat sca sca Sch Sco Sec sec sec seg sel sem sen set Sha sha shi sho sid sig sim sin Sir ske sli Smo soc sof sol sol sol sol sou sou spa spe spe Spe spe sph spi Spi spr sta sta sta sta sta ste ste ste Sto str str sub sub sub suc sun sup sup sup sup sur swa syn syn tac tas tel tem ter tes the the the the thi thr tid til tip ton tor tou tra tra tra tra Tri tri tru tsu tur two Typ UHE ult unc uni uni uni upg ura uti val var vec Vel ver Ver vie Vir vis vis vol W-R war wav wav wea Wei wha wid win WN3 Wol wri xen yok zen zij > >>