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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<< < -es -iv -ti 21- a p abe abs abs acc acc acc act act ada adi ads aes Age Alb Alf ali all alp alt ama amp ana ang ang ann ano ant ant ape apo app app arc Arg ari art ass ast ast ast atm ato att Aur aut axi azi bac Bal Bar Bar Bay Bec Ber bet bic bij bin bio Bir bla Bla blu blu bol Boo bou bra Bre bro bug C r cal Cal can car Car Cas cat cau cel cen cer Cha cha Cha che cho cir cir cir Cla cli clo clu co- cod 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 cop Cor cor cor cos cos Cou cou CP cre cri cro CSP cur cya Cyg dan dar dat de- deb dec dec dee def deg del dem den dep des det dev dia dif dif dih dip dir dis dis dis dis dis diu doc doo dou dow Dru dus dwa dyn Dys Ear ecc eco edi EHB Ein ela ele ele ele ele ell eme emp end Eng ent epi equ equ Era est eth Eur evi exa exc exe exi exp exp ext ext eye fac fal Far fed Fer fer fie fin fir fit fla flo flu fol for for Fou fra fre Fre ful fuz Gal gal Gal gam gas Gau gen gen geo geo geo gib glo gos gra gra gra gra Gre gri gui H I hal Ham har Haw hea hei hel Hel her het hie hig Hob hom Hor hot Hub hum Huy hyd hyd hyp hyp ico if ima imp imp in- 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 Kee Kep kil Kis kry Lag lam lan Lar lat law lea lem lep Li lig lim lin lin lin lit loc loc lon Lor low lum lun Lup Lym 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 mix mod mod MOL mon mor mov mul mur N66 Nap nat nea neg Ner neu New New nic nod non non non nor nov nuc nul num O-t obl obs obt och off Ohm on- opa Oph opt opt ora orb ord Ori ort osc out ove ozo pal pan par par par par pat pec pen per per per per per Pfu pha pho pho pho phy pie pla Pla Pla pla pla Plo poi pol pol pol pol por pos pot pow pre pre pre pre pri pri pri pro pro pro pro Pro pro Pru pul pul Pyt qua qua qua qua quo rad rad rad rad rad rad ram Ran rat re- rea rec rec red red ref ref reg Reg rel rel rem rep res res res ret rev rho rif Rin Rob Rom rot rot rul S D Sai san Sat sca Sch Sch scr sec sec sec sei sel sem sep set sha she sho sid sig sil sim sin sit sky Slo sno sof sol sol sol sol sor sou spa spa spe spe spe sph spi spi spr SS sta sta sta sta ste ste ste Sto str str stu sub sub suc sun sup sup sup sup sur swe syn syn tad Tau tel ten ter tet the the the thi Tho thr tid tim Tit top tot tra tra tra tra tre tri Tro tru tur TW Typ U G ult unb und uni uni uns ura use val vap vec Vel Ven Ver Vie Vir vir vis vol W V war wav wav wea Wei Wez wid win WN3 Wol Wro Y d YOR zen zir > >>

Number of Results: 12974 Search : far
collapsar
  رمب‌اختر   
rombaxtar

Fr.: collapsar   

The collapse of the core of a very massive star which results in a black hole accompanied by a very energetic → gamma-ray burst.

From collaps(e) + (st)ar.

collapse
  ۱) رمبیدن؛ ۲) رمبش   
1) rombidan (#); 2) rombeš (#)

Fr.: 1) s'effondrer; 2) effondrement   

1) (v.) To fall inward abruptly under its own → gravity.
2) (n.) The act of falling inward abruptly under its own gravity. → gravitational collapse; → core collapse.

From L. collapsus, p.p. of collabi "fall together," from → com- "together" + labi "to fall, slip."

1) Mod.Pers. rombidan "to fall apart, to crumble," Hamadâni, Malâyeri: rommidan, Lori remese "get destroyed," remane "to destroy a building," possibly cognate with E. crumble "to break into small fragments," from O.E. cruma, akin to D. kruim, Ger. Krume "crumb," L. grumus "heap of earth," root of Fr. grumeau "lump."
2) Rombeš from present stem romb "collapse" + noun suffix -eš.

collapse of the wave function
  رمبش ِ کریای ِ موج   
rombeš-e karyâ-ye mowj

Fr.: effondrement de la fonction d'onde   

The idea, central to the → Copenhagen Interpretation of quantum theory, whereby at the moment of observation the → wave function changes irreversibly from a description of all of the possibilities that could be observed to a description of only the event that is observed. More specifically, quantum entities such as electrons exist as waves until they are observed, then "collapse" into point-like particles. According to the Copenhagen Interpretation, observation causes the wave function to collapse. However it is not known what causes the wave function to collapse. Same as → wave collapse.

collapse; → wave function.

collapsed star
  ستاره‌ی ِ رمبیده   
setâre-ye rombidé

Fr.: étoile effondrée   

A star that has undergone → collapse.

Collapsed p.p. of → collapse; → star.

Setâré, → star; rombidé p.p. of rombidan, → collapse.

collect
  ۱) گرد‌آوردن، انباشتن؛ ۲) گرد‌آمدن   
1) gerdâvardan (#), anbâštan (#); 2) gerdâmadan

Fr.: 1) collecter, réunir, accumuler, ramasser; 2) s'accumuler, se réunir   

1a) To bring together into a one body or place.
1b) To gather and gradually accumulate in a place.
2) to gather together; assemble.

From O.Fr. collecter, from L. collectus, p.p. of colligere "gather together," from → com- "together" + legere "to gather," cf. L. lignum "wood, firewood," lit. "that which is gathered"; cognate with Gk. legein "to say, tell, declare," from PIE *leg- "to pick together, gather, collect"

1) Gerdâvardan "to collect," from gerd "round; around," → disk; alternatively, ultimately from PIE base *ger- "to gather," cf. Iranian ger-, gor-, etc. "to gather," → category, + âvardan "to bring," → production.
Anbâštan, anbârdan "to fill, to replete;" Mid.Pers. hambāridan "to fill;" from Proto-Iranian *ham-par-, from prefix ham-, → com-, + par- "to fill;" cf. Av. par- "to fill," parav-, pauru-, pouru- "full, much, many;" O.Pers. paru- "much, many;" Mid.Pers. purr "full;" Mod.Pers. por "full, much, very;" PIE base *pelu- "full," from *pel- "to be full;" cf. Skt. puru- "much, abundant;" Gk. polus "many," plethos "great number, multitude;" O.E. full.
2) Gerdâmadan "to come together," with âmadan "to come," → efficiency.

collect and collapse model
  مدل ِ انباشت و رمبش   
model-e anbâšt va rombeš

Fr.: modèle d'accumulation et d'effondrement   

A → sequential star formation model involving → massive stars and → H II regions. The energetic ultraviolet photons from a massive star born in a → molecular cloud drive a spherical → ionization front radially outward from the star at a velocity much higher than the → sound speed in the cold neutral gas. The supersonic expansion of the H II region through the surrounding neutral gas creates a → shock front, sweeping up an increasingly massive and dense shell of cool neutral gas. This is the collect phase of the process in which the H II region simply acts like a snowplough. If the expansion of the H II region continues for long enough, the surface density of the shell increases to the point where the shell becomes self-gravitating. The shell is then expected to collapse and fragment. Individual fragments may then enter a non-linear collapse phase, possibly forming massive stars. This model was first proposed by Elmegreen & Lada (1977, ApJ 214, 725), who used a one-dimensional analysis. Whitworth et al. (1994, MNRAS, 268, 291) developed an analytical model for the collect and collapse process which predicts the fragmentation time, the size, number, and mass of the fragments (see also Elmegreen 1998, in ASP Conf. Ser. 148, Origins, eds. Woodward et al., p. 150 and references therein). → stimulated star formation, → triggered star formation.

collect; → collapse; → model.

collecting area
  پهنه‌ی ِ گرد‌آور   
pahne-ye gerdâvar

Fr.: surface collectrice   

Of an interferometric telescope made up of several mirrors, the hypothetical mirror created by the combination of the individual mirrors.

collect; → area.

collection
  گرد‌آورش، گرد‌آورد، گرد‌آمد، گرد‌آیند   
gerdâvareš, gerdâvard, gerdâmad, gerdâyand (#)

Fr.: collection   

1) The act or process of collecting.
2) A group of objects or works to be seen, studied, or kept together.

Verbal noun from → collect.

collective
  گرد‌آمدی   
gerdâmadi

Fr.: collectif   

Forming a whole; of or characteristic of a group taken together.

collect + → -ive.

collective behavior
  رفتار ِ گرد‌آمدی   
raftâr-e gerdâmadi

Fr.: comportement collectif   

1) The whole behavior of a system of many interacting components, which differs from that of the individual components. Some classical examples are the → many-body problem, → phase transition, most of thermodynamic phenomena, collective oscillations occurring in solids, etc. Physics dealt with collective behavior much earlier than the term collective behavior was even coined.
2) Sociology: The more or less unpredictable act of people when being in group, which is totally different from the behavior they would have if acted individually.
3) Biology: A large number of group phenomena such as pattern formation, self organization, trail formation, and synchronization seen among many living creatures.

collective; → behavior.

collective star formation
  دیسش ِ گرد‌آمدی ِ ستارگان   
diseš-e gerdâmdi-ye setâregân

Fr.: formation collective d'étolies   

Formation of stars, especially → massive stars, in group as opposed to individual formation.

collective; → star; → formation.

collectivism
  گرد‌آمدگرایی   
gerdâmadgerâyi

Fr.: collectivisme   

1) The principle of ownership of the means of production, by the state or the people.
2) A social system based on this principle (Dictionary.com).

collective; → -ism.

collectivity
  گرد‌آمدیگی   
gerdâmadigi

Fr.: collectivité   

1) Collective character.
2) A collective whole.

collective; → -ity.

collectivization
  گرد‌آمدش، گرد‌آمدکرد   
gerâmadideš, gerâdmad-kard

Fr.: collectivisation   

The process of forming collectives or collective communities where property and resources are owned by the community and not individuals (TheFreeDictionary.com).

Verbal noun of → collectivize.

collectivize
  گرد‌آمدیدن، گرد‌آمدکردن   
gerâmadidan, gerâdmad kardan

Fr.: collectiviser   

To organize (a people, industry, economy, etc.) according to the principles of → collectivism (Dictionary.com).

collective; → -ize.

collector
  گرد‌آور   
gerdâvar (#)

Fr.: collecteur   

A device that collects: a solar energy collector; a dust collector.
The semiconductor region in a bipolar junction transistor in which most of the current flows.

From → collect + -or.

collide
  همکوبیدن   
hamkubidan

Fr.: se heurter, heurter, entrer en collision   

1) To strike together with forceful impact, such as two astronomical objects.
2) Of two or more atomic particles, to approach closely resulting in an abrupt change of momentum or exchange of energy.

From L. collidere "to strike together," from col- variant of → com- "together" + laedere "to strike," of unknown origin.

Ham- "together, with," → com- + kubidan, kuftan "to beat, strike, pound," kus "drum," Mid.Pers. kôftan and kôstan "to beat, strike."

collider
  همکوبگر، همکوبنده   
hamkubgar, hamkubandé

Fr.: collisionneur   

A particle accelerator in which two beams of particles are forced to collide head on.

Agent noun from → collide + → -or.

colliding-beam accelerator
  شتابگر با تابه‌ی ِ همکوبنده   
šetâbgar bâ tâbe-ye hamkubandé

Fr.: accélérateur à faisceau de collision   

Same as → collider.

collide; → beam; → accelerator.

collimate
  همراستاییدن، همراستا کردن   
hamrâstâyidan, hamrâstâ kardan

Fr.: collimater   

To pack and align photons or atomic particles parallel to a particular direction.

L. collimatus, p.p. of collimare, alteration of collineare "to make straight," from → com- + linea, → line.

From ham- "together, with," → com- + râstâ, → direction, + -idan infinitive suffix, kardan "to do," → work.

<< < -es -iv -ti 21- a p abe abs abs acc acc acc act act ada adi ads aes Age Alb Alf ali all alp alt ama amp ana ang ang ann ano ant ant ape apo app app arc Arg ari art ass ast ast ast atm ato att Aur aut axi azi bac Bal Bar Bar Bay Bec Ber bet bic bij bin bio Bir bla Bla blu blu bol Boo bou bra Bre bro bug C r cal Cal can car Car Cas cat cau cel cen cer Cha cha Cha che cho cir cir cir Cla cli clo clu co- cod 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 cop Cor cor cor cos cos Cou cou CP cre cri cro CSP cur cya Cyg dan dar dat de- deb dec dec dee def deg del dem den dep des det dev dia dif dif dih dip dir dis dis dis dis dis diu doc doo dou dow Dru dus dwa dyn Dys Ear ecc eco edi EHB Ein ela ele ele ele ele ell eme emp end Eng ent epi equ equ Era est eth Eur evi exa exc exe exi exp exp ext ext eye fac fal Far fed Fer fer fie fin fir fit fla flo flu fol for for Fou fra fre Fre ful fuz Gal gal Gal gam gas Gau gen gen geo geo geo gib glo gos gra gra gra gra Gre gri gui H I hal Ham har Haw hea hei hel Hel her het hie hig Hob hom Hor hot Hub hum Huy hyd hyd hyp hyp ico if ima imp imp in- 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 Kee Kep kil Kis kry Lag lam lan Lar lat law lea lem lep Li lig lim lin lin lin lit loc loc lon Lor low lum lun Lup Lym 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 mix mod mod MOL mon mor mov mul mur N66 Nap nat nea neg Ner neu New New nic nod non non non nor nov nuc nul num O-t obl obs obt och off Ohm on- opa Oph opt opt ora orb ord Ori ort osc out ove ozo pal pan par par par par pat pec pen per per per per per Pfu pha pho pho pho phy pie pla Pla Pla pla pla Plo poi pol pol pol pol por pos pot pow pre pre pre pre pri pri pri pro pro pro pro Pro pro Pru pul pul Pyt qua qua qua qua quo rad rad rad rad rad rad ram Ran rat re- rea rec rec red red ref ref reg Reg rel rel rem rep res res res ret rev rho rif Rin Rob Rom rot rot rul S D Sai san Sat sca Sch Sch scr sec sec sec sei sel sem sep set sha she sho sid sig sil sim sin sit sky Slo sno sof sol sol sol sol sor sou spa spa spe spe spe sph spi spi spr SS sta sta sta sta ste ste ste Sto str str stu sub sub suc sun sup sup sup sup sur swe syn syn tad Tau tel ten ter tet the the the thi Tho thr tid tim Tit top tot tra tra tra tra tre tri Tro tru tur TW Typ U G ult unb und uni uni uns ura use val vap vec Vel Ven Ver Vie Vir vir vis vol W V war wav wav wea Wei Wez wid win WN3 Wol Wro Y d YOR zen zir > >>