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: 13176 Search : far
object language
  زبان ِ بر‌آخت   
zabân-e barâxt

Fr.: langue objet   

Any language described by a → metalanguage. For example, the sentence "In Persian, the word setâré means "star" " is part of a metalanguage (here, English), and the language described (namely Persian) is an object language. Metalanguage and object language may be identical.

object; → language.

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.


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