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: 13070 Search : far
coverage
  پوشش   
pušeš (#)

Fr.: couverture   

1) General: The extent to which something is covered.
2) Astro.: The total area of the sky observed in a particular → sky survey. See also → fractional sky coverage.
3) The area within which a radio signal sent by a transmitter is received reliably .
4) In film making, the shooting of a scene from various views and using various exposures.

From → cover + -age a suffix forming abstract nouns.

cover.

cow
  گاو   
gâv (#)

Fr.: vache   

The female of bovine animals.

M.E. cou, cognate with Pers. Gâv, as below.

Mid.Pers. "bull, cow;" Av. gao-, gāvuš; cf. Skt. go-, gáus; Gk. bous ";" L. bos "ox, bull, cow;" O.E. cu "cow;" Ger. Kuh "cow;" PIE *gwows "cow."

Cowling model
  مدل ِ کاؤلینگ   
model-e Cowling

Fr.: modèle de Cowling   

A model of the internal structure of → massive stars in which a → convective core is surrounded by a large → radiative envelope. However, recent studies point to the presence of a thin → convection zone in the outer envelope of hot massive stars, beneath the → photosphere, which is caused by opacity peaks associated with iron and helium ionization. See also → iron convection zone.

After Thomas Cowling (1906-1990), a British astronomer, who put forward the model; → model.

CP star
  ستاره‌ی ِ CP   
setâre-ye CP

Fr.: étoile CP   

chemically peculiar star.

chemically peculiar star.

CP-symmetry
  همامونی ِ بار-همالی   
hamâmuni-ye bâr-hamâli

Fr.: symétrie charge-parité   

Same as → charge-parity symmetry.

charge; → parity; → symmetry.

crab
  خرچنگ   
xarcang (#)

Fr.: crabe   

1) Any decapod crustacean of the suborder Brachyura, having the eyes on short stalks and a short, broad, more or less flattened body, the abdomen being small and folded under the thorax. → Cancer; → Crab nebula; → Crab pulsar.
2) Any of various other crustaceans, as the hermit crab, or other animals, as the horseshoe crab, resembling the true crabs (Dictionary.com).

M.E. crabbe; O.E. crabba, from Germanic *krab(b)- (cf. Low Ger. krabben "to scratch, claw"); PIE base *gerbh- "to scratch;" cf. Gk. graphein "to write."

Xarcang "crab," from Mid.Pers. karcang, cf. Lori qerženg from kar-, qer- + cang, ženg "claw." The meaning of the first component, xar/qer, is not clear. It 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."

Crab nebula (M1, NGC 1952)
  میغ ِ خرچنگ   
miq-e xarcang

Fr.: Nébuleuse du Crabe   

An expanding cloud of debris from the explosion of a → Type I supernova in the → constellation  → Taurus. Its light reached Earth in 1054 and was visible to the naked eye even in the daytime. Lying about 6,300 → light-years away, the Crab nebula is an intense → radio source (Tau A), and also a source of X-rays and gamma-rays. The diameter of the → supernova remnant is about 6 light-years; it is expanding at velocity of 1000 km/sec.

crab; → nebula.

Crab pulsar
  پولسار ِ خرچنگ، تپار ِ ~   
pulsâr-e xarcang (#), tapâr-e ~ (#)

Fr.: pulsar du Crabe   

A → pulsar discovered in the center of the → Crab nebula in 1969. It is a highly magnetized → neutron star with a radius of 10-15 km that spins 30 times a second.

crab; → pulsar.

cradle
  گهواره   
gahvâré (#)

Fr.: berceau   

1) A bed for a baby that is usually designed to rock back and forth when pushed gently. → Newton's cradle.
2) The place where something begins (Merriam-Webster.com).

M.E. cradel, from O.E cradol akin to O.H.G. kratto "basket," Ger. Krätze "basket carried on the back;" Pers. gereh "knot;" Skt. granth- "to tie a knot" (Cheung 2007).

Gahvâré "cradle," variants gâhvâré, gowvâré, govâré, from Mid.Pers. gâhwârag "cot, cradle."

craft
  ناو   
nâv (#)

Fr.: petit bateau   

A ship or other vessel.

M.E., from O.E. cræft "strength, skill;" cf. Ger. Kraft, D. kracht, O.N. kraptr. The "ship" meaning comes from the expression "vessel of small craft (trade)."

Nâv "ship;" O.Pers./Av. *nāv-, O.Pers. nāviyā- "fleet;" cf. Skt. nau-, nava- "ship, boat;" Gk. naus.

crater
  ۱، ۲) لاوک، کندال؛ ۳) جام   
1, 2) lâvak, kandâl; 3) Jâm

Fr.: 1, 2) cratère; 3) Coupe   

1) A bowl-like depression on the rigid surface of a planet, satellite, or asteroid usually caused by the high-speed impact of a colliding object.
2) A bowl-shaped cavity at the mouth of a volcano.
3) The Cup. A small → constellation with faint stars, in the Southern Hemisphere, that lies next to → Hydra, at about 11h 20m right ascension, 15° south declination. Abbreviation: Crt; genitive: Crateris.

From Gk. krater "a wide, two-handled bowl for mixing wine with water," from kerannynai "to mix;" PIE base *kere- "to mix, confuse."

Lâvak "a large wooden bowl for kneading dough."
Kandâl "cavity, pit" in Qâeni, from kand- past tense stem of kandan "to dig" (Mid.Pers. kandan, O.Pers./Av. kan- "to dig," Skt. khan- "to dig") + -al, → -al.
Jâm "cup, chalice, goblet, bowl," Mid.Pers. jâm "vessel, goblet; glass," Av. yama- "glass, glass vessel," yâmô.pacika- "baked glass;" related to Skt. camasa- "a vessel used at sacrifices for drinking Soma, kind of flat dish or cup?"

crater floor
  کف ِ لاوک   
kaff-e lâvak

Fr.: sol de cratère   

The lower part of an → impact crater bounded by the rising → crater rim.

crater; → floor.

crater rim
  لبه‌ی ِ لاوک   
labe-ye lâvak

Fr.: bords de cratère   

That part an → impact crater that extends above the height of the local surface, usually in a circular or elliptical pattern.

crater; → rim.

cratering
  لاوک زایی، کندال زایی   
lâvakzâyi, kandâlzâyi

Fr.: cratérisation   

The process by which craters form on the surface of Solar System objects.

From → crater + → -ing

From lâvak or kandâl, → crater, + zâyi from zâ- present tense stem of zâdan "to give birth," Mid.Pers. zâtan, Av. zan- "to bear, give birth to a child, be born," infinitive zazâite, zâta- "born," cf. Skt. janati "begets, bears," L. gignere "to beget," PIE base *gen- "to give birth, beget."

craterlet
  لاوک‌چه، کندال‌چه   
lâvakcé, kandâlcé

Fr.: petit cratère   

A small crater often beside a larger one on the surface of the Moon or solid planets.

From → crater + -let diminutive suffix.

Lâvakcé, kandâlcé from lâvak, kandâl, → crater, + -cé diminutive suffix.

create
  آفریدن   
âfaridan (#)

Fr.: créer   

1) To cause to come into existence.
2) To produce or bring about by a course of action or behavior.

M.E., from L. creatus, p.p. of creare "to make, bring forth, produce," akin to crescere "arise, grow," → crescent.

Âfaridan, âfarin- "to create" (related to nifrin, nefrin "curse"); Mid.Pers. âfrin- "to create, bless;" Av. frī- "to rejoice, please;" cf. Skt. pray- "to please, enjoy, satisfy," O.H.G. friten "to look after;" Ger. frei, → free.

creation
  آفرینش   
âfarinš (#)

Fr.: création   

1) The act of producing or causing to exist.
2) The act of being created. See also → creation operator.

Verbal noun of → create.

creation operator
  آپارگر ِ آفرینش   
âpârgar-e âfarineš

Fr.: opérateur de création   

An operator that acts on the → eigenstate describing the → harmonic oscillator to raise its → energy level by one step. The creation operator is the → Hermitian conjugate operator of the → annihilation operator.

creation; → operator.

creationism
  آفرینش‌باوری   
âfarineš-bâvari

Fr.: créationisme   

The religious belief that considers the account of creation given in Genesis to be a scientific description and rejects the Big Bang theory and the theory of evolution. Creationism is a → pseudoscience. Same as "creation science" and "scientific creationism."

creation; → -ism.

credit
  ۱) ارجه؛ ۲) ارجه دادن   
1) arjé; 2) arjé dâdan

Fr.: 1) crédit; 2) créditer, faire crédit   

1a) Commendation or honor given for some action, quality, etc.
1b) A source of pride or honor.
1c) The ascription or acknowledgment of something as due or properly attributable to a person, institution, etc.
1d) Influence or authority resulting from the confidence of others or from one's reputation.
1e) A sum of money due to a person; anything valuable standing on the credit side of an account:
2) To believe; put confidence in; trust; have faith in (Dictionary.com).

M.E., from M.Fr. crédit "belief, trust," from It. credito, from L. creditum "a loan, thing entrusted to another," from p.p. of credere "to trust, entrust, believe."

Arjé, from arj "esteem, honor, dignity; price, worth, value," variant of arz "price, value," arzidan "to be worth;" Mid.Pers. arz- "to be worth;" Av. arj- "to be worth," arəjaiti "it is worth;" Proto-Ir. *Harj- "to be worth;" cf. Skt. arh- "to earn, be worth;" Gk. alphein "to earn, to obtain;" Lith. alga "salary, pay." "to be woth." Arjé dâdan with dâdan "to give, grant, yield," → datum.

<< < -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 ash ass ast ast asy atm ato att aut aut axi Baa bal Bal bar bar bea beh Bes bia big bin bin bip biv bla bli blu Boh Bol Bos bou bra bri bro buo Cal cal Can cap car Car cat cat CCD Cen cen CGS cha cha che che chr cir cir cis 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 con Cop Cor cor cor cos cos Cou cou cov cre cri cro cry cur cut Cyg DA dar dat de deb dec dec ded def def dei dem den dep des det dev dia dif dif dig Dio Dir dis dis dis dis dis dis div dom dou dow dri dur dus dyn dyn ear eav ecl Edd eff Ein Ekm ele ele ele ele ell emb emi enc ene ent eph equ equ equ eru eth eup eve EX exc exe exi exo exp ext ext ext fab fai far Fec fem fer fie fin 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 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 int inv ion iro ise iso iso ite jet Jou Jup kap Kep kil Kip Kra Lag Lam Lan Lar las law lea Leg Leo lev lig lim lin lin lin lit loc loc log Lor low lum lun lun Lym Mac mag mag mag mag mag mai Mal mar mas mas mat max mea mea med men mer Mes met met mic Mic Mie Mil min mis mJy mod mol mon moo mot mul mul mut nad nas nat neb neg net neu New New nig Noe non non non Nor nov nuc nul num OB obl obs occ Ock off Ohm on- ope opi opt opt orb orb ord Ori ort osm out ove ozo pal pan par par par par pat pec pen per per per per per Pfu pha pho pho pho phy pie Pit Pla pla pla pla ple Poi pol pol pol pol pop pos pos pow pre pre pre pre pri pri pri pro pro pro pro pro pro Pro pub pul pyr qua qua qua qua qui rad rad rad rad rad rad rai ran Ras Ray rea rec rec rec red red ref reg reg rel rel rel rep res res res res Reu rhe Rie rig ris Roe Ros rot Rud ryd Sag sam sat sca sca Sch sci Sea sec sec see sel sem sen ser Sey Sha she sho sid sig sim sim sin ske sle smo Sob sof sol sol sol sol sou Sou spa Sp spe spe spe sph spi spi spr squ sta sta sta sta ste ste ste Sto Str str str sub sub suc sun sup sup sup sup sur swa syn syn tab tar tek tem ter tes the the the the Tho thr tid tim Tis Too Tor tra tra Tra tra tra tri tri tru Tul tur two Typ ult un- und uni uni unk upp Urc utt val var vec vel ver ver vin vir vis Vog von wal wat wav wax wea wei Whi wil win WN7 wor X-r Yar You zer zod > >>