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: 13048 Search : far
counterweight
  پارسنگ   
pârsang (#)

Fr.: contrepoids   

A weight that balances another weight.

counter-; → weight.

Pârsang "a make-weight," from pâr-, a variant of pâd-, → counter-, + sang a variant of sanj, sanjidan "to measure; compare, put in balance," → object; alternatively, pârsang "a piece of stone," from pâr, short for pâré "piece, part," + sang, → stone, meaning "weight."

country
  ۱) کشور؛ ۲) روستا   
1) kešvar (#); 2) rustâ (#)

Fr.: pays   

1) A nation or state; the territory of a nation or state.
2) An area or expanse outside large urban areas; the countryside; rural area.

M.E. contre, contree, from O.Fr. contree, from V.L. (terra) contrata "(land) lying opposite," or "(land) spread before)," derived from L. contra "against, opposite," → contra-.

1) Kešvar "country; clime;" Mid.Pers. kišwar "region, clime, continent;" Av. karšvar-, from karš- "to furrow," karšu- "tilled ground."
2) Rustâ, → countryside.

countryside
  روستا   
rustâ (#)

Fr.: campagne   

A rural area; he inhabitants of a countryside.

country; → side.

Rustâ, from Mid.Pers. rôstâk, rôtastâk "village, district, river-bed;" loaned into Armenian rotstak, ərotastak "district."

couple
  ۱) جفت، ۲) جفت‌نیرو؛ ۳) جفتیدن، جفسر کردن   
1) joft (#), 2) joftniru (#); 3) joftidan (#), jafsar kardan

Fr.: 1, 2) couple; 3) coupler   

1) General: Two items of the same kind; a pair; something that joins or connects two things together; a link.
2) A system of two equal and opposite, parallel, but not → collinear forces acting upon a body.
3) To fasten, join together; connect. See also → coupled, → coupled system, → charge-coupled device, → coupling, → decouple, → galvanic couple, → Nasireddin couple, → pair; → parity, → thermocouple.

1) joft "pair, couple," Lori, Laki jeft, Qâyeni jof, Tabari jeft, Mid.Pers. yuxt "pair, couple," Av. yuxta- "a team of horses," from yaog- "to yoke, harness, put to; to join, unite," infinitive yuxta, Mid.Pers. jug, ayoxtan "to join, yoke," Mod.Pers. yuq "yoke," cf. Skt. yugam "yoke," Gk. zygon "yoke," zeugnyanai "to join, unite," L. jugare "to join," from jugum "yoke," P.Gmc. *yukam, E. yoke; PIE *yeug- "to join."
2) joftniru, from joft as above + niru, → force.
3) Joftidan, infinitive from joft, → couple; jafsar kardan infinitive from jafsar, → coupled, + kardan "to do, to make."

coupled
  جفسر، جفتیده   
jafsar, joftidé

Fr.: couplé   

Joined together, connected by a link. → coupled system, → charge-coupled device.

Adj. from → couple.

Jafsar "connected, joined pair," in Tâleši, from jaf, variant of joft, as above + sar "head," literally "joined by head" (Mid.Pers. sar, Av. sarah- "head," Skt. siras- "head," Gk. kara "head," keras "horn," Mod.Pers. sarun "horn," L. cerebrum "brain;" PIE *ker- "head, horn"); joftidé adj./p.p. from joftidan, → couple.

coupled systems
  راژمان‌های ِ جفسر، ~ جفتیده   
râžmânhâ-ye jafsar, ~ joftidé

Fr.: systèmes couplés   

A set of two or more mechanical vibrating systems connected so that they interact with one another.

coupled; → system;

coupling
  جفسری، جفتش   
jafsari, jofteš

Fr.: couplage   

The act of linking together or forming couples; a connection between two things so they move together.
The quality of coupled systems or the way they are coupled.

Noun from → couple; → -ing.

coupling coefficient
  همگر ِ جفسری   
hamgar-e jafsari

Fr.: coefficient de couplage   

A parameter that indicates the strength of the interaction between two systems.

coupling; → coefficient.

coupling constant
  پایای ِ جفسری   
pâyâ-ye jafsari

Fr.: constante de couplage   

In nuclear physics, a constant that indicates a measure of how strongly two particles interact.

coupling; → constant.

courage
  پردلی، دلیری، درش   
pordeli (#), deliri (#), darš

Fr.: courage   

The quality of mind or spirit that enables a person to face difficulty, danger, pain, etc.

M.E. corage, from O.Fr., derivative of cœur "heart," from L. cor, cognate with Pers. del and E. → heart

Pordeli, deliri, from pordel, delir, → courageous.
Darš, → dare.

courageous
  پردل، دلیر، درشمند   
pordel (#), delir (#), daršmand

Fr.: courageux   

Having or characterized by courage.

M.E., from O.Fr. corageus, corajos, from → courage.

Pordel, literally "greathearted," from por, → full, + del, → heart. Delir "brave, courageous," from del "heart," as above.
Daršmand, → daring.

cousin
  ترزا   
tarzâ

Fr.: cousin   

1) The son or daughter of an uncle or aunt.
2) One related by descent in a diverging line from a known common ancestor, as from one's grandparent or from one's father's or mother's sister or brother (Dictionary.com).

M.E. cosin, from O.Fr. cusin, cosin, from L. consobrinus, from → com- + sobrinussoror, → sister.

Tarzâ, from tar, from Baluci teru "uncle, aunt," tri "aunt;" cf. Av. tuiriia- "uncle," + "son/daughter of; born," → birth.

covalence
  هم ارزایی   
ham-arzâyi

Fr.: covalence   

Chemistry: The number of covalent bonds which an atom can from. The sharing of electrons to form chemical bonds. → equivalence.

From → co- + valence, from L. valentia "strength, worth," valere "to be worth; be strong."

Ham-arzâyi, from ham-co- + arzâyi, from arzidan "to be worth," arzân "worthy; of small value, cheap," arj "esteem, honour, price, worth," Mid.Pers. arz "value, worth," arzidan "be worth," arzân "valuable;" Av. arəjaiti "is worth," arəja- "valuable," arəg- "to be worth;" cf. Skt. arh- "to be worth, to earn," árhant- "worthy person;" Gk. alphanein "to bring in as profit," alphein "to ear, obtain;" Lith. algà "salary, pay;" PIE base *algwh- "to earn; price, value."

covalent bond
  بند ِ هم ارزا   
band-e ham-arzâ

Fr.: lien covalent   

A chemical bond between two atoms of the same or different elements, in which each atom contributes one electron to be shared in a pair.

Covalent, adj. of → covalence; → bond.

covariance
  هم‌ورتایی   
hamvartâyi

Fr.: covariance   

In statistics, a measure of linear dependence. For two random variables X and Y with expectations mx and my, the covariance is E{(X - mx)(Y - my)}.

From co-, → com-, + → variance.

From ham-, → com-, + vartâyi, → variance.

covariant
  هم‌ورتا   
hamvartâ

Fr.: covariant   

In physics, having the property of remaining invariant in form under a Lorentz transformation.

com-; → variance.

covariant tensor
  تانسر ِ هم‌ورتا   
tânsor-e hamvartâ

Fr.: tenseur covariant   

A tensor whose components are distinguished by → subscript indices.

covariant; → tensor.

cover
  پوشیدن؛ پوشش   
pušidan; pušeš (#)

Fr.: couvrir; couverture   

1) To spread over an area or surface.
2) Something that covers.

From M.E., from O.Fr. covrir, from L. cooperire "to cover over, overwhelm, bury," from the intensive prefix → com- + operire "to close, cover."

Pušidan "to cover; to put on," → envelope; pušeš, verbal noun of pušidan.

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."

<< < -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 ave axi Bab bal Bal bar bar bea Bek 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 CH 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 con Cop Cor cor cor cos cos cou cou Cow cre cri cro cry cur cya Cyg dan dar dat de- deb dec dec ded def deg del dem den dep des det dev dia dif dif dih dio Dir dis dis dis dis dis dis DO don dou dow dro dur dwa dyn Dys ear ebb ecl edg egg Ein Ela ele ele ele ele ell eme emp enc eng ent epi equ equ equ esc eth Eur Eve exa exc exe exi exp exp ext ext ext fac fal far fed Fer fer fie fin fir fis fla flo flu fol for for fou fra fre Fre fro fut G-t gal gal gam gas Gau Gem gen geo geo geo gia Gli Gol gra gra gra gra gre gri gui H I Hag hal har hat He- hea hel Hel her Hes hie hig his hom hor hot Hub Hug hur hyd hyd hyg hyp ice ide ima Ima imp imp inc inc ind ine inf inf inf ing inn ins ins int int int int int int int int inv Io ion iro isl iso iso Jac jet jud jur Kel Kep kil Klo 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 Meg Mer Mer met met Met mic Mid Mil min Mir mit mod mod mol mon Mor mou mul mul mys nan Nat nau nec neo neu nev New NGC no nom non non nor not nuc nuc num nut obj obs obs occ ocu oft ome Oor ope opp opt opt orb ord ori ort osc out ove oxi pai pan par par par par pas pea pen per per per per Per per pha phi pho pho pho phy pio Pla pla pla pla Pla plu Poi pol pol pol poo pos pos pot pra pre pre pre pre pri pri pro pro pro pro pro Pro pro pse pul pur qua qua qua qua que rac rad rad rad rad rad rad ran rar 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 Rus Sac sal sat sca sca Sch sci Scu sec sec Sed sel Sel sen ser Sex Sha she sho sid sig sil sim sin siz sla Sma sno sof sol sol sol sol sou sou spa spa 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 vib vio vir vis voi vor wan wat wav wax wea Wei whi Wil win WN9 wor X-r yel you zer zod > >>