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 217 A s abe abs abs acc acc Ach act act ADa adi adv aff age Alc Alf ali all alp alt ama amp ana ang ang ann ano ant ant ape apo app aps arc Arg arm art ass ast ast ast atm ato att aur aut axi B-t Bai Bal bar bar Be bed Bes BHB bif bim bin Bio bis bla ble blu bod Bol bor bou bra Bre bro Bul cag cal can Can car Car Cas cat CCD cel cen Cet 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 coo cor cor cor cos cos cos cou cou cra cri cro cry cul cur cyc D r dar dat day dea dec dec dec def def deg del den dep des det deu dex 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 fis fla flo flu foc for for Fou fra fre fre fro fun G r Gal gal gam gas Gau gel gen geo geo geo Gho gla goa gra gra gra gra gre Gre gro gyr had hal har har HD Hea Hel hel Her her hid hig Hip hom hor hot Hub Hub hun hyd hyd hyg Hyp ice ide ima imm imp imp inc ind ind ine inf inf inf ini ins ins int int int int int int int int int inv ion iro ise iso iso Jab jet Jov Jur Kel Kep kil kit Kui Lag lam lan Lar Lat law lea lem lep Li- lig lim lin lin lio lit loc lod lon Lor low Lum lun Lup Lyn mac mag mag mag mag mag mai man mar mas mas mat Max mea mec mel mer mes met met met mic mid mil Min mir mix mod mol mom Moo mor mov mul mur nab nar nat neb neg nes neu New New nig nod non non non Nor nua nuc nul Nun OBC obl obs occ oct off Ohm on- ope opp opt opt orb orb org Ori ort Ost out ove p m Pal par par par par Pas pat Peg Peo per per per per per pha Phe pho pho pho phy pin pla pla pla pla pla plu poi pol pol Pol pol pos pos pot pra pre pre pre pre pri pri pro pro pro pro pro pro pro pse pul Pup Qua qua qua qua que rac rad rad rad rad rad rad ran rap 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 rur Sac sal sat sca sca Sch sci Scu sec sec Sed sel sem sen Ser Sey Sha she sho sid sig sim sin sip ske sli smo soc sol sol sol sol sol sou spa spa spe spe spe spe Spi spi spo squ sta sta sta sta Ste ste ste sto str str str sub sub sub sun sup sup sup sup sur sus sym syn T-s tar Tei tem ter tes the the the the thi thr tid tim Tis Too Tor tra tra Tra tra tra tri tri tru Tul tur Tyc Typ ult unb und uni uni unr upp Urs vac van Var veg Ven ver vib vio vir vis vol VY war wat wav WC8 Web wes whi win WN1 wob wri X-r yoc zen Zhe > >>

Number of Results: 12937 Search : far
melt
  گداختن، گدازیدن   
godâxtan, godâzidan (#)

Fr.: fondre   

(v.int.) To become liquefied by warmth or heat, as ice, snow, butter, or metal. (v.tr.) To reduce to a liquid state by warmth or heat; to fuse.

M.E. melten, O.E. meltan "become liquid;" cf. O.N. melta "to digest;" Gk. meldein "to melt," L. mollis "soft, mild."

Godâxtan, godâz- "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."

meltdown
  فروگداخت   
forugodâxt (#)

Fr.: fusion du cœur de réacteur   

A severe accident in a nuclear reactor which is caused by a major failure in the reactor cooling circuit leading to the melting of the reactor core. Without coolant, the core would overheat so that the uranium fuel would melt. If the core continued to heat up, the steel walls of the core would also melt. If the molten core escaped from the containment housing of the reactor, large amounts of highly radioactive materials would be released into the atmosphere. The radioactive contamination of the air, water, and soil can have disastrous consequences for life.

melt; down, M.E. doun, from O.E. dune "downward," short for adune, ofdune, from a-, of "off, from" + dune "hill."

Forugodâxt, from foru- "down, downward; below; beneath," as in forurixtan, forunešastan, foruraftan (Mid.Pers. frôt "down, downward;" O.Pers. fravata "forward, downward;" cf. Skt. pravát- "a sloping path, the slope of a mountain") + godâxt past stem of godâxtan, godazidan → melt.

melting point
  نقطه‌ی ِ گداز   
noqte-ye godâz (#)

Fr.: point de fusion   

The temperature at which a solid changes to a liquid.

melting; → point.

member
  هموند   
hamvand (#)

Fr.: membre   

A person or a thing that is part of a group body; e.g. a star which belongs to a cluster.

From M.E., from O.Fr. membre, from L. membrum "limb, member of the body, part."

Hamvand, literally "linked, joined together," from ham- "together, with; same, equally, even" (Mid.Pers. ham-, like L. com- and Gk. syn- with neither of which it is cognate. O.Pers./Av. ham-, Skt. sam-; also O.Pers./Av. hama- "one and the same," Skt. sama-, Gk. homos-; originally identical with PIE numeral *sam- "one," from *som-. The Av. ham- appears in various forms: han- (before gutturals, palatals, dentals) and also hem-, hen-) + vand "joined, tied," from bastan, vastan "to bind, shut" (O.Pers./Av. band- "to bind, fetter," banda- "band, tie" (cf. Skt. bandh- "to bind, tie, fasten;" PIE *bhendh- "to bind;" Ger. binden; E. bind).

membership
  هموندی   
hamvandi (#)

Fr.: adhésion   

The state of being a member.

From → member + -ship a native E. suffix of nouns denoting condition, character, office, skill, etc., from M.E., O.E. -scipe; akin to shape.

hamvandi, from hamvand, → member, + -i condition, character suffix.

membership function
  کریای ِ هموندی   
karyâ-ye hamvandi

Fr.: fonction d'adhésion   

One of several functions used in the → fuzzification and → defuzzification steps of a → fuzzy logic system to map the → nonfuzzy input values to → fuzzy linguistic terms and vice versa. A membership function is used to quantify a linguistic term.

membership; → function.

memorize
  برمیدن، از بر کردن   
barmidan, az bar kardan

Fr.: mémoriser   

To commit to memory, learn by heart.

From memor-, → memory, + → -ize.

Barmidan, from barm, → memory; az bar kardan, literally "to do from memory," from az preposition, bar, contraction of barm, kardan "to do, make," → -ize.

memory
  برم   
barm

Fr.: mémoire   

1) The faculty of the mind to preserve and recall past sensations, thoughts, knowledge, etc.
2) In computers and recording instruments, any device into which information can be introduced and later extracted.

M.E. memorie, from L. memoria, from memor "mindful, remembering;" cf. Gk. mermera "care," merimna "anxious thought, sorrow," martyr "witness;" Pers. šomârdan "to count;" Mid.Pers. ôšmârtan, ôšmurtan "to reckon, calculate, enumerate, account for;" from Av. base (š)mar- "to have in mind, remember, recall," pati-šmar- "to recall; to long for," hišmar-; Skt. smar- "to remember, become aware," smarati "he remembers."

Barm "memory," variant bar (az bar kardan "to memorize"), bir, vir, from Mid.Pers. varm "memory," variants vir, vârom "mind, conscience;" from Av. vārəma, vārəm "according to one's wishes," from var- "to choose."

memory capacity
  گنجایش ِ برم   
gonjâyeš-e barm

Fr.: capacité de mémoire   

The amount of information which can be retained in a memory, usually expressed as the number of words which can be retained. For comparison of different memories this number is expressed in bits.

memory; → capacity.

Mendeleev's table
  جدول ِ مندلیف   
jadval-e Mendeleev (#)

Fr.: tableau de Mendeleïev   

See → periodic table.

periodic table.

meniscus
  ماهک، کوژ-کاو   
mâhak, kuž-kâv

Fr.: ménisque   

A → lens with a crescent-shaped section; a → concavo-convex lens.

Mod.L. meniscus, from Gk. meniskos "lunar crescent," diminutive of mene, → moon.

Mâhak, diminutive of mâh, → moon.
Kuž-kâv "convexo-concave," → convex; → concave.

Menkalinan (Beta Aurigae)
  منکب ذی العنان، شانه‌ی ِ ارابه‌ران   
Mankeb-zel-enân, šâne-ye arâbe-rân

Fr.: Menkalinan   

A multiple star of magnitude V = 1.90 which is situated in the → Auriga constellation at 81 → light-years away. Other main designations: HR 2088 and HD 40183. Although the third brightest star of the constellation, it bears "Beta" designation. Menkalinan is composed of two main components, which make up a → spectroscopic binary. The combined apparent magnitude varies over a period of 3.96 days between +1.89 and +1.94, as every 47.5 hours one of the stars partially eclipses the other. Both are metallic-lined → subgiant stars of spectral type A2 IV. Each is about 48 times more luminous than the Sun and has roughly the same mass and radius (2.6 times that of the Sun). There is a third component of magnitude 14.1, which is separated from the main pair by 13'', corresponding to a projected distance of 330 → astronomical units.

From Ar. Al Mankib dhi'l 'Inan (منکب ذی العنان) "the Shoulder of the One Who Holds the Reins," which is the rendition of the Gk. mythology character Auriga (Charioteer).

Menkent (Theta Centauri)
  منکب   
Mankab

Fr.: Menkent (θ Centauri)   

A → giant star of → apparent visual magnitude +2.06 located in the southern constellation → Centaurus. It has a → spectral type of K0 III and lies 61 → light-years away. Also called Haratan.

Menkent, corruption of Ar. Mankib "shoulder," short for Mankib al-Qanturis (منکب القنطورس ) "shoulder of Centaurus."

Mensa
  میزکوه   
Mizkuh

Fr.: Table   

The Table Mountain. A faint constellation near the south celestial pole, at 5h right ascension, 80° south declination. It contains part of the → Large Magellanic Cloud, and its brightest star is of magnitude 5.1. Abbreviation Men; genitive Mensae.

First introduced by the French astronomer Nicolas Louis de Lacaille (1713-1762) under the name Mons Mensae, from L. mons "mountain" + mensa "table" to refer to Table Mountain in South Africa. Lacaille made important early observations of the southern sky from the Cape Town region.

Mizkuh, from miz "table," originally "preparations for entertaining a guest; guest;" Mid.Pers. mêzd "offering, meal" + kuhmountain.

mental
  منتی، منتال   
menti, mentâl

Fr.: mental   

Of or pertaining to the → mind.

M.E., from M.Fr. mental, from L. mentalis "of the mind," from mens (genitive mentis) "mind," from PIE root *men- "to think."

Menti, mentâl, adjectives of ment, → mind; → -al.

mentality
  منتیگی   
mentigi

Fr.: mentalité   

1) Mental capacity or endowment.
2) Mental capacity or endowment (Dictionary.com).

mental; → -ity.

mention
  ۱) ایات؛ ۲) ایاتیدن   
1) ayât; 2) ayâtidan

Fr.: 1) mentionner; 2) mention   

1) To refer briefly to; name, specify, or speak of (Dictionary.com).
2) A direct or incidental reference; a mentioning (Dictionary.com).

M.E. mencioun, from O.Fr. mencion "mention, memory, speech," from L. mentionem "a calling to mind, a speaking of," from root of Old L. minisci "to think," related to mens "mind," from PIE root *men- "to think;" cf. Pers. man, mân "thought, to think," → mind.

Ayât, from Mid.Pers. ayât, ayâd "remembrance, recollection, memory;" Mod.Pers. yâd.

Merak (β Ursae Majoris)
  مراق   
Merâq (#)

Fr.: Merak   

A blue → dwarf star of → spectral type A1 with an → apparent magnitude of 2.37 in the constellation → Ursa Major. It lies 79 → light-years away and has a → luminosity almost 60 times solar, and a mass about triple that of the Sun. Although Merak ranks fifth in brightness in the → Big Dipper, it received the Beta designation from Bayer, who lettered the Dipper's stars from front to back.

From Ar. al-Maraqq (المراق) "the soft parts of the belly, the loins."

Mercator telescope
  تلسکوپ ِ مرکاتور   
teleskop-e Mercator

Fr.: télescope de Mercator   

A 1.2 m semi-robotic telescope located at the Roque de los Muchachos Observatory on La Palma Island (Canary Islands, Spain). It is operated by the staff of the Institute of Astronomy, University of Leuven (Belgium). The telescope uses two modern instruments HERMES: a → high-resolution optical → spectrograph, and MAIA, a three-armed camera equipped with large → charge-coupled device (CCD)s and optimized for more specific rapid variability studies. The main science drivers of the research performed on the basis of Mercator data are related to a wide range of variable phenomena with a clear focus on stellar astrophysics, in particular the stellar internal structure by means of → asteroseismology.

Named after the Flemish cartographer Gerardus Mercator (1512-1594), who studied and taught at the University of Leuven before moving to Duisburg (Germany)

Mercury
  ۱) تیر؛ ۲) جیوه، سیماب   
1) Tir; 2) jivé, simâb

Fr.: Mercure   

1) The closest → planet to the → Sun and one of five planets visible with the naked eye. The → greatest elongation of Mercury is about 28°, making it visible at most about 112 minutes after sunset or before sunrise. It lies at a mean distance of about 0.39 → astronomical units from the Sun. Mercury is just 4,879 km in diameter, about 2.6 times smaller than the Earth. Its → orbital period is 87.97 Earth days. Mercury has a high → density, 5.4 g cm-3, with only the Earth having a higher density among the planets. This is largely due to Mercury being composed mainly of heavy metals and rock. One → solar day on Mercury lasts the equivalent of 176 Earth days while the sidereal day (the time for 1 rotation in relation to a fixed point) lasts 59 Earth days. Mercury is nearly → tidally locked to the Sun and over time this has slowed the rotation of the planet to almost match its orbit around the Sun. Mercury also has the highest orbital → eccentricity of all the planets with its distance from the Sun ranging from 46 to 70 million km. Mercury has just 38% the → gravity of Earth, this is too little to maintain an atmosphere against → solar winds, which blow it away. The surface of Mercury which faces the Sun has temperatures of up to 427°C, whilst on the alternate side this can be as low as -173°C. Mercury's core has more iron than any other planet in the → solar system. This has to do with its formation and early life. If the planet formed quickly, increasing temperatures of the evolving Sun could have vaporized much of the existing surface, leaving only a thin shell.
2) (lower case): Metallic chemical element, also called quicksilver; symbol Hg (from L. hydrargyrum "liquid silver"). → Atomic number 80; → atomic weight 200.59; → melting point -38.842°C; → boiling point 356.58°C. Mercury was first recognized as a chemical element (in the modern sense) by the French chemist Antoine L. Lavoisier (1743-1794).

From L. Mercurius "Mercury," the Roman god, originally a god of tradesmen and thieves, from merx "merchandise."

1) Mid.Pers. Tîr the name of the planet Mercury, O.Pers. proper noun *Tira-dāta- "given by Tir" (Hellenized Tiridates), Mid.Pers. Tîr.dât the name of three Parthian Kings; Av. Tīro.nakaθwa-.
2) Jivé, variant živé, from Mid.Pers. zivik, zivandag "alive, living," from zivastan "to live," zivižn "life;" O.Pers./Av. gay- "to live," Av. gaya- "life," gaeθâ- "being, world, mankind," jivya-, jva- "aliving, alive;" cf. Skt. jiva- "alive, living;" Gk. bios "life;" L. vivus "living, alive," vita "life;" O.E. cwic "alive;" E. quick; Lith. gyvas "living, alive;" PIE base *gweie- "to live."
Simâb "liquid silver," from sim "silver" (Mid.Pers. âsīm) + âb, → water.

<< < -es -iv -ti 217 A s abe abs abs acc acc Ach act act ADa adi adv aff age Alc Alf ali all alp alt ama amp ana ang ang ann ano ant ant ape apo app aps arc Arg arm art ass ast ast ast atm ato att aur aut axi B-t Bai Bal bar bar Be bed Bes BHB bif bim bin Bio bis bla ble blu bod Bol bor bou bra Bre bro Bul cag cal can Can car Car Cas cat CCD cel cen Cet 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 coo cor cor cor cos cos cos cou cou cra cri cro cry cul cur cyc D r dar dat day dea dec dec dec def def deg del den dep des det deu dex 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 fis fla flo flu foc for for Fou fra fre fre fro fun G r Gal gal gam gas Gau gel gen geo geo geo Gho gla goa gra gra gra gra gre Gre gro gyr had hal har har HD Hea Hel hel Her her hid hig Hip hom hor hot Hub Hub hun hyd hyd hyg Hyp ice ide ima imm imp imp inc ind ind ine inf inf inf ini ins ins int int int int int int int int int inv ion iro ise iso iso Jab jet Jov Jur Kel Kep kil kit Kui Lag lam lan Lar Lat law lea lem lep Li- lig lim lin lin lio lit loc lod lon Lor low Lum lun Lup Lyn mac mag mag mag mag mag mai man mar mas mas mat Max mea mec mel mer mes met met met mic mid mil Min mir mix mod mol mom Moo mor mov mul mur nab nar nat neb neg nes neu New New nig nod non non non Nor nua nuc nul Nun OBC obl obs occ oct off Ohm on- ope opp opt opt orb orb org Ori ort Ost out ove p m Pal par par par par Pas pat Peg Peo per per per per per pha Phe pho pho pho phy pin pla pla pla pla pla plu poi pol pol Pol pol pos pos pot pra pre pre pre pre pri pri pro pro pro pro pro pro pro pse pul Pup Qua qua qua qua que rac rad rad rad rad rad rad ran rap 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 rur Sac sal sat sca sca Sch sci Scu sec sec Sed sel sem sen Ser Sey Sha she sho sid sig sim sin sip ske sli smo soc sol sol sol sol sol sou spa spa spe spe spe spe Spi spi spo squ sta sta sta sta Ste ste ste sto str str str sub sub sub sun sup sup sup sup sur sus sym syn T-s tar Tei tem ter tes the the the the thi thr tid tim Tis Too Tor tra tra Tra tra tra tri tri tru Tul tur Tyc Typ ult unb und uni uni unr upp Urs vac van Var veg Ven ver vib vio vir vis vol VY war wat wav WC8 Web wes whi win WN1 wob wri X-r yoc zen Zhe > >>