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
object space
  فضای ِ بر‌آخت   
fazâ-ye barâxt

Fr.: espace objet   

In an → optical system, the space between the object being viewed and the → entrance pupil. See also → image space.

object; → space.

object-oriented programming
  برنامه‌سازی ِ بر‌آخت‌گرا   
barnâme-sâzi-ye barâxt-gerâ

Fr.: programme orienté objet   

In computer science a programming technique that uses → objects and their interactions to design applications and programs.

object; oriented, p.p. from the verb of → orientation; → programming.

Barnâme-sâzi, → programming; barâxt, → object; gerâ agent adj. of gerâyidan "to incline toward; to intend; to make for." The stem gerâ may be a variant of Mod.Pers. kil "bent, inclined" (k/g and l/r interchanges), from PIE base *klei- "to lean, incline," cognate with L. clinare "to bend" (E. declination, inclination, etc.), Gk. klinein "to cause to slope, slant, incline," Skt. sri- "to lean," O.Pers. θray-, Av. sray- "to lean," P.Gmc. *khlinen (Ger. lehnen, E. lean).

objection
  بر‌آختش   
barâxteš

Fr.: objection   

1) The act of objecting.
2) A statement presented in opposition.

Verbal noun of → object.

objective
  ۱، ۲، ۳) بر‌آختی؛ ۴) کنداری   
1, 2, 3) barâxti; 4) kondâri

Fr.: objectif   

1a) Of or pertaining to something that can exist independent of thought or perception as part of reality. Opposite of → subjective.
1b) Free of any bias or prejudice caused by personal feelings.
2) The → lens or combination of lenses nearest the → object in an optical instrument ( → telescope, → microscope, → camera).
3) The → primary mirror of a → reflecting telescope.
4) Grammar: Relating to nouns, noun phrases, or pronouns that are the objects of verbs or prepositions.

Adjective of → object.

objective grating
  توری ِ بر‌آختی   
turi-ye barâxti

Fr.: réseau-objectif   

A diffraction grating placed over the aperture of a telescope in order to produce spectra of all the objects in the field of view.

objective; → grating.

objective lens
  عدسی ِ بر‌آختی   
adasi-ye barâxti

Fr.: lentille de l'objectif   

The lens or system of lenses in a → telescope or → microscope that magnify an object and project a larger → image. The object lens is nearest the object being viewed

objective; → lens.

objective prism
  منشور ِ بر‌آختی   
manšur-e barâxti

Fr.: prisme-objectif   

A dispersing prism placed in front of a telescope objective to produce spectra of all luminous objects in the field of view.

objective; → prism.

objective probability
  شوانایی ِ بر‌آختی   
šavânâi-ye barâxti

Fr.: probabilité objective   

A probability determined by the long-term frequency of an event; in contrast to subjective probability.

objective; → probability.

objectivity
  بر‌آختیگی   
barâxtigi

Fr.: objectivité   

1) The state or quality of being → objective. Opposite of → subjectivity.
2) Ability to view things objectively.
3) External reality.

objective + → -ity.

oblate
  پخ   
pax (#)

Fr.: aplati   

Adjective meaning flattened, as → oblate spheroid. Opposed to → prolate.

From L. ob- "toward" + latus, abstracted from its opposite, prolatus "lengthened."

Pax "oblate," of unknown etymology.

oblate spheroid
  کره‌وار ِ پخ   
korevâr-e pax

Fr.: sphéroïde aplati   

An ellipsoid produced by rotating an ellipse through 360° about its minor axis. Compare with → prolate spheroid.

oblate; → spheroid.

oblateness
  پخی   
paxi (#)

Fr.: aplatissement   

The property possessed by a round body that is flattened at the poles.

Noun from → oblate.

obligate
  ۱) فریزیدن؛ ۲) فریزیده   
1) farizidan; 2) farizidé

Fr.: obliger   

1a) To bind or oblige morally or legally.
1b) To pledge, commit, or bind (funds, property, etc.) to meet an obligation.
2a) Morally or legally bound; obliged; constrained.
2b) Necessary; essential (Dictionary.com).

Back-formation from → obligation.

obligation
  فریز   
fariz (#)

Fr.: obligation   

1) Something by which a person is bound or obliged to do certain things, and which arises out of a sense of duty or results from custom, law, etc.
2) Something that is done or is to be done for such reasons (Dictionary.com).

M.E. obligacioun, from O.Fr. obligacion "obligation, duty, responsibility," from L. obligationem "an engaging or pledging," literally "a binding," noun of action from p.p. stem of obligare "to bind, bind up, bandage," from → ob- "to" + ligare "to bind," from PIE root *leig- "to bind."

Fariz, from Mid.Pers. frêz "obligation; duty."

obligatory
  فریزگون   
farizgun

Fr.: obligatoire   

Required as a matter of obligation; mandatory; incumbent; compulsory.

M.E., from L.L. obligatorius "binding," → obligate, + -tory, from L. -torius, from → -tor + -ius.

Farizgun, from fariz, → duty, + -gun "manner, fashion."

oblique
  یکور   
yekvar (#)

Fr.: oblique   

Neither perpendicular nor horizontal; having the axis not perpendicular to the base; slanting; sloping.

From M.Fr. oblique, from L. obliquus "slanting, sidelong, indirect," from ob "against" + root of licinus "(of an ox whose corn tips are) bent upward," from PIE base *lei- "to bend, be movable."

Yekvar, literally "slantingn to a side," from yek-, → one, + var "side," variant bar "side; breadth; breast" (Mid.Pers. var "breast;" Av. vouru "wide, broad, extended" (vourucašāni- "looking far"), related to varah- "breast;" cf. Skt. urú- "wide, broad," úras- "breast;" Gk. eurus "wide, broad;" PIE base uer-, ueru-s"wide, broad").

oblique rotator model
  مدل ِ چرخنده ِ یکور   
model-e carxande-ye yekvar

Fr.: modèle de rotateur oblique   

A stellar model in which the rotation axis is tilted relative to the magnetic dipole axis. As the star rotates, observable quantities (e.g. the line-of-sight component of the magnetic field, stellar brightness, emission lines) are modulated according to the rotational period. Such a model was first put forward by D. Stibbs (1950, MNRAS, 110, 395).

oblique; → rotator; → model.

oblique shock
  تش ِ یکور   
toš-e yekvar

Fr.: choc oblique   

A → shock wave that is inclined to the flow direction. Depending on the shape of the object and the speed of the → flow, the shock wave may be inclined to the flow direction.

oblique; → shock.

oblique sphere
  سپهر ِ یکور   
sepehr-e yekvar

Fr.: sphère oblique   

The celestial sphere when the circles parallel to the equator are cut obliquely by the horizon plane, which divides them into two unequal parts. In other words, the sphere when its axis is oblique to the horizon of the place.

oblique; → sphere.

obliquity
  یکوری   
yekvari

Fr.: obliquité   

1) General: The quality or state of being oblique.
2) The → angle that an object's → rotational axis makes with its → orbital axis. In other words, the angle between its → equatorial plane and → orbital plane. Same as → axial tilt.

State noun of → oblique.

<< < -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 > >>