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: 13116 Search : far
confine
  پربستن، پربست کردن   
parbastan (#), parbast kardan (#)

Fr.: confiner   

To enclose within bounds; to restrict.

M.E., from M.Fr. confins, confines, from L. confinis "boundary, border," from con-, → com- "with" + finis "end."

Parbastan, parbast kardan, literally "close around," from par- "around," → circum-, + bast, bastan "to close," → closed.

confined plasma
  پلاسمای ِ پربسته   
pelâsmâ-ye parbasté

Fr.: plasma confiné   

Plasma in which magnetic field lines forming closed surfaces confine the plasma.

Confined, p;p. of → confine; → plasma.

confinement
  پربست   
parbast (#)

Fr.: confinement   

General: The act of confining; the state of being confined. Physics: A property of quantum electrodynamics whereby quarks cannot exist as free particles, but are forever bound into protons, neutrons, etc.

Noun from → confine.

confirm
  آدشیدن   
âdešidan

Fr.: confirmer   

1) To support or establish the certainty or validity of; verify.

2) To establish the truth, accuracy, validity, or genuineness of.

L. confirmare "make firm, establish," from → com- intensive prefix + firmare "to strengthen," from firmus, → firm.

Âdešidan, from prefix a- + deš "→ firm" + infinitive suffix -idan.

confirmation
  آدش   
âdeš

Fr.: confirmation   

The act of confirming or the state of being confirmed.

Verbal noun from → confirm.

conflict
  کشمکش   
kešmakeš (#)

Fr.: conflit   

1) A serious disagreement or argument, typically a protracted one.
2) A serious incompatibility between two or more opinions, principles, or interests (Oxford.Dictionaries).

M.E., from O.Fr. conflit and directly from L. conflictus, p.p. of confligere "to strike together, be in conflict," from → com- "together" + fligere "to strike."

Kešmakeš, literally "pulling different ways," from kešidan "to pull, carry, draw," → galaxy.

conform
  ۱) همدیسیدن؛ ۲) همدیس شدن   
1) hamdisidan; 2) hamdis šodan

Fr.: 1) conformer; 2) se conformer   

1a) To make similar in form, nature, or character.
1b) To bring into agreement, correspondence, or harmony.
2a) To act in accordance or harmony; comply (usually followed by to).
2b) To be or become similar in form, nature, or character (Dictionary.com).

con-; → form.

conformal
  همدیس   
hamdis

Fr.: conforme   

1) That conforms, especially to the shape of something.
2) Math.: Of, pertaining to, or specifying a mapping of a surface upon another surface so that all angles between intersecting curves remain unchanged.

con- + → form + → -al.

conformal compactification
  همپکانش ِ همدیس   
hampakâneš-e hamdi

Fr.: compactification conforme   

A mapping of an infinite → space-time onto a finite one that may make the far away parts of the former accessible to study. The technique invented by Penrose defines an equivalence class of → metrics, gab being equivalent to ĝab = Ω2gab, where Ω is a positive scalar function of the space-time that modifies the distance scale making the asymptotics of the physical metric accessible to study.

conformal; → compactification.

conformal cyclic cosmology (CCC)
  کیهانشناسی ِ چرخه‌ای ِ همدیس   
keyhânšenâsi-ye carxe-yi-ye hamdis

Fr.: cosmologie cyclique conforme   

A cosmological model developped by Roger Penrose and colleagues according which the Universe undergoes repeated cycles of expansion. Each cycle, referred to an aeon, starts from its own "→ big bang" and finally comes to a stage of accelerated expansion which continues indefinitely. There is no stage of contraction (to a "→ big crunch") in this model. Instead, each aeon of the universe, in a sense "forgets" how big it is, both at its big bang and in its very remote future where it becomes physically identical with the big bang of the next aeon, despite there being an infinite scale change involved, on passing from one aeon to the next. This model considers a conformal structure rather than a metric structure. Conformal structure may be viewed as family of metrics that are equivalent to one another via a scale change, which may vary from place to place. Thus, in conformal space-time geometry, there is not a particular metric gab, but an equivalence class of metrics where the metrics ğab and gab are considered to be equivalent if there is a smooth positive scalar field Ω for which ğab = Ω gab (R. Penrose, 2012, The Basic Ideas of Conformal Cyclic Cosmology).

conformal; → cyclic; → cosmology.

conformal geometry
  هندسه‌ی ِ همدیس   
hendese-ye hamdis

Fr.: géométrie conforme   

The study of the set of angle-preserving transformations on a space.

conformal; → geometry.

conformal mapping
  همتایش ِ همدیس   
hamtâyeš-e hamdis

Fr.: application conforme   

A continuous mapping u = f(x) of a domain D in an n-dimensional Euclidean space (n≥ 2) into the n-dimensional Euclidean space is called conformal at a point x0D if it has the properties of constancy of dilation and preservation of angles at this point.

conformal; → mapping.

confound
  پشیدن   
pašidan

Fr.: confondre   

1) To throw into confusion or disorder.
2) To treat or regard erroneously as identical; mix or associate by mistake (Dictionary.com).

M.E. conf(o)unden, from Anglo-Fr. confoundre, O.Fr. confondre "throw into disorder, crush, ruin," from L. confundere "to confuse," literally "to pour together, mix, mingle," from → com- + fundere "to pour"

Pašidan, from Tâti paši "confused, blend;" ultimately from Proto-Ir. *apa-šan-, from *šan- "to shake;" cf. Mid.Pers. pašân-, afšân- "to spread, scatter;" Pers. afšândan "to disperse;" Kurd. pašiv "messy, disordered," pašukân "to be agitated, distraught;" Gilaki voršin "messy, disordered;" see → chaos for other dialectal examples.

confuse
  پشیدن   
pašidan

Fr.: confondre   

1) To make unclear or indistinct.
2) To fail to distinguish between; associate by mistake; confound (Dictionary.com).

Back formation from confused, M.E. confused, from O.fr. confus, from L. confusus, p.p. of confundere, → confound.

confound.

confused
  پشیده، پشناک   
pašidé, pašnâk

Fr.: confus   

1) (Of a person) Unable to think clearly; perplexed.
2) Lacking order and so difficult to understand. Disordered.

Past participle of → confuse.

confusion
  پشش   
pašeš

Fr.: confusion   

1) The act of confusing.
2) The state of being confused.
3) Disorder; upheaval; tumult; chaos (Dictionary.com).

Verbal noun of → confuse.

confusion limit
  حد ِ پشش   
hadd-e pašeš

Fr.: limite de confusion   

The → fluctuations of the → background  → sky brightness below which astronomical → sources cannot be → detected individually. The confusion limit is reached when the density of sources brighter than the → root mean square  → noise becomes high enough within the area of the resolution element.

confusion; → limit.

conglomerate
  هاگلمیدن   
hâgolemidan

Fr.: conglomérer   

1) Anything composed of heterogeneous materials or elements.
2) Geology: A sedimentary rock made of rounded rock fragments (greater than two millimeters in diameter), such as pebbles, cobbles, and boulders, in a finer-grained matrix.

From L. conglomeratus, p.p. of conglomerare "to roll together," from → com- "together" + glomerare "to gather into a ball," from glomus (genitive glomeris) "a ball," globus "globe;" PIE *gel- "to make into a ball."

Hâgolemidan, from hâ- "together," → com-, + golem "glomus," → agglomerate.

conglomeration
  هاگلمش   
hâgolemeš

Fr.: conglomération   

1) The act of conglomerating; the state of being conglomerated.
2) a cohering mass; cluster (Dictionary.com).

Verbal noun of → conglomerate.

congruence
  دمسازی   
damsâzi

Fr.: congruence   

The quality or state of agreeing or corresponding. → congruent.

Noun form of → congruent.

<< < -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 > >>