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: 12937 Search : far
cancel
  فاتریدن   
fâtaridan

Fr.: barrer, rayer   

To make void; revoke; annul.

M.E. cancellen, from M.L. cancellare "to cross out," from L. cancellare "to make like a lattice," from cancelli "lattice, grating."

Fâtaridan, from Sogd. fâtar "to remove, to set aside," from *fra-taraya-, from *tar- "to cross" (Cheung 2007), → trans-.

Cancer
  خرچنگ   
Xarcang (#)

Fr.: Cancer   

The Crab. The dimmest → constellation of the → Zodiac, located in the northern hemisphere at approximately R.A. 8 h and Dec. +20°. The main feature of the constellation is the open cluster → Praesepe (M 44). Abbreviation: Cnc; genitive form: Cancri.

Cancer,from L., from Gk. karkinos; PIE base *qarq- "to be hard" (like the shell of a crab); cf. Skt. karkatah "crab," karkarah "hard."
In Gk. mythology the Crab was sent by the goddess Hera to bite Hercules in the midst of the struggle with → Hydra, but Hercules crushed the crustacean with his heel. Hera rewarded the Crab by placing it in the → Zodiac.

Xarcang "crab," from Mid.Pers. karcang, cf. Lori qerženg from kar-, qer- + cang, ženg "claw." The component xar/qer may be related to Av. xruta-, xraoždva- "hard," as in xruždisma- "hard ground" (from xruždi- + zam-), and to the PIE *qarq- "to be hard." In that case, the Pers. term for crab would literally mean "hard claw."

Cancer, Tropic of
  هورگردِ خرچنگ   
Hurgard-e Xarcang

Fr.: Tropique du Cancer   

Tropic of Cancer.

candela
  کندلا   
kandelâ

Fr.: candela   

The → SI unit of → luminous intensity in a given direction; symbol cd. It is defined by taking the fixed numerical value of the → luminous efficacy of → monochromatic radiation of → frequency 540 × 1012 Hz, Kcd, to be 683 when expressed in the unit lm W-1, which is equal to cd sr W-1, or cd sr kg-1 m-2 s3, where the kilogram, meter and second are defined in terms of → Planck's constant (h), → velocity of light (c), and ΔνCs.

From L. candela, → candle.

candidate
  نامزد   
nâmzad (#)

Fr.: candidat   

1) An applicant or suitable person for a position.
2) An astronomical entity which is being considered for belonging to a special class of entities; e.g. → black hole candidate, → dark matter candidate, → supernova candidate.

From L. candidatus "clothed in white" (reference to the white togas worn by those seeking office), from candidus "shining white," from candere "to shine," cf. Skt. cand- "to shine," candra "bright; the Moon;" PIE base *kand- "to glow, to shine."

Nâmzad, literally "nominated," from nâm, → name, + zad, p.p. of zadan "to strike" (Mid.Pers. zatan, žatan, O.Pers./Av. jan-, gan- "to strike, hit, smite, kill," Skt. han- "to strike, beat," Gk. theinein "to strike," L. fendere "to strike, push," Gmc *gundjo "war, battle;" PIE *gwhen- "to strike, kill").

candle
  شمع   
šam' (#)

Fr.: bougie, chandelle   

1) A cylinder or block of wax, tallow, or other fatty substance with a central wick, which is burned to produce light.
2) A unit of luminous intensity, superseded by the → candela.

M.E., O.E. candel, from L. candela "a light, torch," from candere "to shine," candidus "shining white" (E. candidate); cf. Skt. cand- "to shine, to glow," candati "shines," candra- "shining, glowing, the Moon;" Gk. kandaros "coal;" PIE base *kand- "to glow, to shine."

Šam', loan from Ar.

Canes Venatici
  تازی، سگانِ تازی   
Tâzi (#), Sagân-e Tâzi (#)

Fr.: Chiens de chasse   

The Hunting Dogs. A small → constellation in the northern hemisphere at approximate position: R.A. 7h, Dec. +40°. Abbreviation: CVn, genitive form: Canum Venaticorum.

L. Canes Venatic from canes, pl. of canis "dog" + venatici, pl. of venaticus "hunting." The constellation was created by the Polish astronomer Johannes Hevelius in his sky chart of 1687.

Tâzi "greyhound, hunting dog," originally "swift, fast," from tâzidan, tâxtan "to run, to assault, to chase," Av. tak- "to run," Skt. talki "he rushes at," O.S. techim "to run away," Lith. teku "to run, flow." Sagân-e Tâzi, from sagân pl. of sag "dog" → Canis Major + tâzi.

Canis Major
  سگِ بزرگ   
Sag-e Bozorg (#)

Fr.: Grand Chien   

The Greater Dog. A → constellation in the southern hemisphere which contains → Sirius, the brightest star of the whole sky. Approximate position: R.A. 7 h, Dec. -20°; abbreviation CMa; genitive form Canis Majoris.

L. Canis Major, from canis "dog" (cf. Gk. kuon, Skt. svâ-, Av. spâ-, Pers. sag; PIE *kwon-) + Maior "larger," from L. major, irregular comp. of magnus "large, great" (cf. Gk. megas, Av. maz-, masan-, mazant- "great, important," Skt. mah-, mahant-, Mod.Pers. meh; PIE *meg- "great").
Canis Major is usually seen as one of the two hunting dogs of the hunter Orion. The other dog is Canis Minor, the Little Dog.

Sag-e Bozorg, from sag, see the above paragraph, + bozorg "large, great," Mid.Pers. vuzurg, O.Pers. vazarka- "great," Av. vazra- "club," Skt. vajati, vaja- "strength," vajra- "Indira's thunderbolt," L. vegere "to be lively," PIE *weg- "to be strong, be lively."

Canis Minor
  سگِ کوچک   
Sag-e Kucak (#)

Fr.: Petit Chien   

The Lesser Dog. A small → constellation in the equatorial region of the northern sky at approximately R.A. 7h 30m, Dec. +5°. It hosts the bright star → Procyon. Abbreviation CMi, genitive form Canis Minoris.

Canis Minor, from canis "dog" → Canis Major; L. minor "lesser, smaller," from PIE base *min- "small" (cf. Gk. meion "less, lesser," Skt. mi-, minati "to diminish."

Sag "dog," → Canis Major; kucak "small," from Mid.Pers. kok, kotak, kotah "small, short; child."

Canon der Finsternisse
  فهرست ِ گرفت‌ها   
fehrest-e gerefthâ (#)

Fr.: Canon des éclipses   

Canon of Eclipses. The most famous catalogue of solar and lunar eclipses. Published in 1887 by Theodor von Oppolzer, the catalogue contains the elements of all solar and lunar eclipses between 1208 BC and 2161 AD. It has been superseded by the calculations of F. Espenak and J. Meeus, Five Millennium Canon of Solar Eclipses: -1999 to +3000 (NASA/TP-2006-214141) and Five Millennium Canon of Lunar Eclipses: -1999 to +3000 (NASA/TP-2009-214172).

Canon, from L. canon, from Gk. kanon "a straight rod, a measuring rod, rule;" Ger. Finsternisse, plural from finsternis "eclipse; darkness," from finster "dark," M.H.G. vinster, O.H.G. finstar "dark" + -nis suffix forming abstract nouns, → -ness.

Fehrest "index, catalogue, canon," → index; gerefthâ plural of gereft, → eclipse.

canonical
  هنجاروار   
hanjârvâr

Fr.: canonique   

1) General: Pertaining to, established by, or conforming to a canon, i.e. a law or a general rule (especially in ecclesiastical matters).
2) Math.: Relating to the simplest or standard form of a general function, equation, rule, etc.

M.M. canonicalis, from canonic(us), from L. canon, from Gk. kanon "a straight rod, a measuring rod, rule " + alis, → -al.

Hanjârvâr, from hanjâr "a mason's rule, any string or instrument used by builders in laying stones straight; rule, law, way, custom; a norm" + -vâr suffix meaning "having, endowed with; like, in the manner of."

canonical change
  دگرشد ِ هنجاروار، دگرش ِ ~   
degaršod-e hanjârvâr, degareš-e ~

Fr.: changement canonique   

A periodic change in one of the components of the orbit of a celestial object.

canonical; → change.

canonical coordinates
  هماراها‌یِ هنجاروار   
hamârâhâ-ye hanjârvâr,

Fr.: coordonnées canoniques   

Any set of generalized coordinates of a system together with their → conjugate momenta.

canonical; → coordinates.

canonical correlation
  هم‌باز‌آنشِ هنجاروار   
hambâzânš-e hanjârvâr

Fr.: correlation canonique   

The highest correlation between linear functions of two data sets when specific restrictions are imposed upon them.

canonical; → correlation.

canonical equation
  هموگشِ هنجاروار   
hamugeš-e hanjârvâr

Fr.: équation canonique   

The most general form of an equation.

canonical; → equation.

canonical form
  دیسه‌یِ هنجاروار   
dise-ye hanjârvâr

Fr.: forme canonique   

The simplest expression of an equation, statement, or rule.

canonical; → form.

canonical IMF
   IMF ِ هنجاروار   
IMF-e hanjârvâr

Fr.: IMF canonique   

A two-component stellar → initial mass function with → slopes of 1.3 and 2.3 for massive and low mass stars, respectively. Also called universal IMF.

canonical; → IMF.

canonical momentum
  جنباکِ هنجاروار   
jonbâk-e hanjârvâr

Fr.: moment cinétique canonique   

Same as → conjugate momentum.

canonical; → momentum.

canonical upper limit
  حد ِ زبرین ِ جرم   
hadd-e zabarin-e jerm

Fr.: limite supériure canonique   

A physical upper mass limit near 150 Msun assumed for the stellar → initial mass function (Kroupa et al. 2012, arXiv:1112.3340).

canonical; → upper; → limit.

canonically conjugate variable
  ورتنده‌یِ هنجاروارانه همیوغ   
vartande-ye hanjârvârâné hamyuq

Fr.: variable canoniquement conjuguée   

A generalized coordinate and its → conjugate momentum.

Canonically, adverb from → canonical; → conjugate; → variable.

<< < -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 > >>